Everyone says the "Great Firewall of China" is slowing Bitcoin. Why isn't there a minimum ping for running a Bitcoin node or miner? Why isn't some form of self-enforcing QoS already a part of Bitcoin?
North Korea always says it's because of the "Great Firewall of China" that's keeping blocksize small. Why isn't there some form of "you must be this tall (ping) to ride this ride" built into the protocol?
Everyone says the "Great Firewall of China" is slowing Bitcoin. Why isn't there a minimum ping for running a Bitcoin node or miner? Why isn't some form of self-enforcing QoS already a part of Bitcoin? /r/btc
Hey guys. Just coming finishing up my second year as a "Jack of all Trades" sysadmin/IT and after Passing my Sec+ my boss has approved my request to change my title to Sec Admin and work mostly full time on Securing our network as these past 2 years we've seen pretty large growth with at least 3 ransomware attacks and one employee installing bitcoin miners and getting away with it because literally nothing is logged. Our Company consists of our main office with 9 adminstrators and 3 IT guys. Me and another guy, and our manager. We have a 30 person call center in the building with a remote call center connected back here. We serve as a telecom with roughly 40,000 users. Since we have a bunch of phone equipment and such, We have 6 almost identical Colos that each have the work divided between them, but they do not act as failovers. If one Colo loses internet/power, those 10k or so customers are SOL Our security stance is this - and I quote "Don't get attacked". Hasn't worked so far. We do at the very least have a Fortigate Leads me to the CyberSec plan. My first project was adding and configuring a WSUS server so our servers that were last updated in 2018 can at least be a little more secure. I just now finished it and the documentation and now My director and CEO have thrown their full support behind whatever I suggest So i'm kinda insanely excited to just get to get after it with very little redtape. I've spent the last few weeks planning out what I think we need to at least get us up to "Mediocre" standing. Below is my list and my explanations. If all is good I will present this to our C-suite as our CyberSecuity Initiative. This list has gone through several changes and I know that some is way too much or I have the totally wrong idea on what this stuff is. As title says, feel free to tear it apart. I'm excited to learn all of this stuff. 9/15 Updated Cybersec Initiative Current List: -Full Risk/Impact analysis with a Disaster Recovery Plan // Was very surprised to hear we don't have any of this. We just got hit with a hurricane and we were down for almost a week because no disaster plans or fail overs -Entire Network Map with help of LibreNMS or other Net tools // We don't have any maps of our network. Most of what I know is because I have to ask where a server is and I keep a notebook of it around. -Audit security of our POS kiosk systems // We have a few kiosks out that process transactions and I know nothing of any security controls. Would it be a good idea to add these to our domain as well? -Contain the ridiculous VM sprawl // We have VMs that we have no idea what/if they do anything. Need to contain this -Combine our Call center and Main DC, Full permission Audit, add Group policy restrictions (Time of Day, Lockout), add all COLO servers to domain, add all technicians to domain // This is a big one. No point in my opinion of having 2 domains when one is literally one group called "Call center Agents". None of our field guys are added to our domain, and none of our COLO servers are on our domain. Group policy updates to limit time of day and password policies -Create a honeypot/net // This one is mostly for fun -Full rollout of Security Onion // One sensor at each COLO plus our main office network. Wazuh/Malwarebytes configured on every PC/Server we have. -Harden our outward facing Webservers // We don't do much as our websites are administered by another company, But i'd like to talk with them about it -Disable SNMPv2 or change community string // I know that our printers still have this -Create .iso of "stock OS" with malwarebytes/Wazuh already installed, system alreay hardened // More of a convenience -Configure Guest Wifi using best practices -Audit/Use Backups // I know we have backups of some things but not everything. Set this up with raid and/or offsite backup -Implement 2FA/SSO on user PCs // Outlook 2FA and SSO for some of our resources -Turn on firewall logging // Thats right. No logs on firewall at all. -Implement security policies on our Outlook stuff // Phishing detection, logging, etc -Train users on phishing campaigns and such // This wouldn't be until next year during annual company training TLDR: I'm now a sec admin and I'm looking for critique on if/why the above controls wouldn't work or are too much/overkill on our network that takes "Security through obscurity" to a new level. Feel free to fuck me up y'all. Edit: A lot more help than I thought I'd get. This has all been great. You guys are so much nicer than linux4noobs
10-21 14:35 - 'Raising aware nce of cumulative mining power and raising funds for helping organization' (self.Bitcoin) by /u/Basic-Ad-9198 removed from /r/Bitcoin within 3-13min
''' Dear Community, we are not sure if this the right forum to purpose this one. We are working on a development for a new chain for African people to get more adaption within Africa Content. We're also working on a new coin for payment for people and help organization in Africa. Since we are not looking for raising founds through ICO or selling coins. we came with the idea (DONATE YOUR HASHRATE FOR A DAY). Since we had a good reference from many users that nice hash would be the easiest way. We made an account for testing purpose. The website will be coming up soon with all details. but for now if you are interested to share/donate your Hash rate and helping to raise Founds for a good purpose you are most welcome to use our mining Wallet into nice hash for 1 day (or more) every contribution is welcome. Also willing to hear from the community in here, if you have a proposed, ideas or assistance to share. They are more than welcome. Kind Regards. For Donation, you hash rate:
INTRODUCTION Decentralized Finance known as DeFi has emerged as a game-changing concept and sector in the Crypto space which has captured lots of Global investor's attention and helps in the mission of Crypto global adoption. New blockchain startups and existing blockchain platforms have been integrating DeFi into their various ecosystem so as to improve their operational standard and offering the global users more versatile and efficient blockchain services. There still exist some crypto users who believe investing in Bitcoin is the height of investment in the Crypto space. The majority of them have not heard about DeFi nor explore the potential of the technology. For those classes of people, I will briefly explain what Decentralized Finance known as DeFi is all about. https://preview.redd.it/m0ospzuchxs51.jpg?width=679&format=pjpg&auto=webp&s=815df27601b059f064a167ee58ba50a724a01938 ABOUT DRK DRK рlаtfоrm іѕ ѕіmрlу аn іnnоvаtіvе blосkсhаіn рlаtfоrm ѕреаr hеаdіng the mіѕѕіоn of Suѕtаіnаblе Global Dесеntrаlіzеd Fіnаnсіаl Sуѕtеm .Thе Draken Grоuр Dіgіtаl Bаnkіng ѕуѕtеm іѕ thе раrеnt соmраnу thаt bоrn DRK dесеntrаlіzеd рlаtfоrm .Rеаdіlу , Draken Grоuр hаѕ bееn іn ореrаtіоn fоr a while ѕресіаlіzіng іn Dіgіtаl Banking system . Draken Grоuрѕ leverages thе benefit оf blockchain technology іntо thе fіnаnсіаl ѕуѕtеm tо bооѕt thе efficacy оf thеіr fіnаnсіаl services. Thіѕ wіll enable customers tо enjoy сhеареr, еffісіеnt, faster аnd mоrе trаnѕраrеnt fіnаnсіаl ѕеrvісеѕ. Drаkеn оffеrѕ all іn оnе decentralized investment рlаtfоrm whісh еnаblе еnаblе аnу uѕеrѕ to еаrn , ѕtоrе , іnvеѕt and trаdе uѕіng blосkсhаіn and DApps іn a trust-less manner without thе іnvоlvеmеnt of any brоkеr оr intermediary. Drаkеn рlаtfоrm іѕ 100% dесеntrаlіzеd ,sees ѕесurіtу аnd ѕаfеtу оf іnvеѕtоrѕ and trаdеrѕ fundѕ as рrіоrіtу. DRK focuses оn оffеrіng the bеѕt fіnаnсіаl services for the global uѕеrѕ , hence іnсоrораtіng lаtеѕt Decentralized technologies in thе DеFі space ѕо аѕ tо оffеr the global uѕеrѕ all in оnе Plаtfоrm where everyone all оvеr thе world can access thеіr vаrіоuѕ Decentralized fіnаnсіаl Products аnd services. Draken Specification | Draken Innovations | Security ● ANONYMOUS-ON-DEMAND: Enter and leave the DaRK mode at whatever point you feel like. ● SUSTAINABLE (Anti-spam, against slack): Miners have financial and notoriety in question to stay legitimate and safeguard the life span of the organization. ● PROOF-OF-STAKE: Fast, modest, adaptable, vitality productive, ecologically inviting, majority rule. ● PORTABLE: Allow designers to port their shrewd agreements to other decentralized innovations. ● CHEAP: Cheaper than current decentralized option with significantly less gas devoured. Shrewd agreements are enhanced for gas use, adjusted between against spamming and monetary possibility. ● FAST: Can have a blocktime on the request for 5 seconds and handle up to a great many exchanges every second. ● FINALITY: Each square fixed is irreversible - no previous deed can be fixed. ● SCALABLE: Fast conclusiveness coordinates the throughput prerequisites of your developing client base. ● SECURE: Access control firewalls your applications against vindictive modules. Token Information : DrakenX Token Token name: DrakenX Symbol: DRX Total supply: 100,000,000,000 (a hundred billion) Contract: https://explorer.draken.tech/tokens/0x0091781D02dA4a883fA6a47A6d3C007CbFcF1107/token_transfers WEBSITE: https://draken.tech/ WHITEPAPER: https://drive.google.com/file/d/1mHtV50CktdFCyD_NaH370sZ8sOBehgce/view TELEGRAM : https://https//t.me/Drakentech FACEBOOK : https://www.facebook.com/DRKDEX TWITER: https://twitter.com/DRKDeFi DRAKEN DEX: https://draken.exchange/ DRAKEN ENTERTAINMENT: https://www.drakenx.io/play STAKING PLATFORM : https://staking.draken.tech/ DRAKEN BLOCKCHAIN : https://explorer.draken.tech AUTHOR : Bitcointalk Username: Amendy1 Bitcointalk Profile Link: https://bitcointalk.org/index.php?action=profile;u=2426201 Trx Wallet Address: TE1UjS3Q5aEmmeC5j8keumnEFLUops3X5H DRK wallet address: 0xDbb0378a038E2909d927e8Bf70b7CA8A9bE32eBd
FU is still in progress and I have no way of knowing when it started, which may be what is stressing me out the most right now. So come with me on a journey of regret while my fourth malware scanner of the night sits at 64% and my friends have gone to bed. So the story, I guess, would begin back when I first started university, about five years ago. I got into art school for visual communication and planned on becoming an animator. To celebrate and to support me, my dad bought me a kick ass lenovo gaming laptop with the power of a billion suns (as you may come to guess, I am not tech savvy. Definitely not tech savvy enough to own this laptop) capable of running several adobe programs at once, with a RAM wide enough to put my mother's behind to shame, with an internal disk memory as big as the disappointment in my father's eyes. College begins, websites for illicit procuration of expensive programs exist, my naive young sunshine self doesn't even know what a VPN is, and for some reason which is is causing me an enormous amount of self-hatred right now, owning a top of the range gaming laptop with amazing everything doesn't seem like a good enough reason for me to pay for an antivirus, so I go with the free software, the ffp1 option, the least-amount-of-having-to-think-about-it choice, because I would totally NOT regret that later, perhaps five years later, at 3 AM - ironically while trying to animate for the first time ever. I continue my happy little life with my absolute beast of a laptop but shit happens and I never actually go into animation, I go into printmaking, which is the most analog of art forms possibly ever, so between having a huge amount of studio work, thesis research and just life stuff, my laptop spends the prime of his life as a glorified facebook machine, a particularly large and lovely screen to watch parks and rec on perhaps. Or so I think... Now I may have noticed performance issues at various points, in fact now that I think about it I moved away from using photoshop a long time ago, and when I think about it further I even got a new wacom tablet last winter, because of the unbearable lag... the shame covers me like a wet blanket. What a fucking idiot. No refrigerator-buzz noises, wheezing fans or uncomfortably hot undersides were enough to make me go "hey, perhaps my free antivirus is a piece of rubbish, and it would be worth ten minutes of my time to run a slightly deeper scan than just the automatic stuff that I even only run when it gets absolutely forced on me". No. I had to just plow on, forgetting that my computer ever ran quietly at all, or that it once harnessed the power of a billion suns, that crashes and reboots and long waiting times are not supposed to happen. Around October 2019 I got annoyed enough to look into how to even use a split drive computer for the first time, and I moved all my bulky user folders to a different drive, and patted myself on the shoulder real good for being such a computer wizard. Hell I even cleaned my registry! But let's get to the point... amongst many minor technological issues for which my solution is to ignore until I forget, is the fact that my phones memory is full because i am constantly photographing everything with it, but for some reason my laptop stopped recognising my phone as a device. So I started poking around yesterday, and when I tried to update windows I got an error code saying that one or more updates failed. You know that scene in Spirited Away when San pulls on a tiny string in the side of the super stinky bath house guest and a huge stream of pollution comes roaring out? Yeah. Somewhere at the horizon of my mind the thought passed by that it was weird that I hadn't been getting push notifications about windows updates. I looked for my antivirus, and lo and behold, it is gone. I googled some stupid shit like "why has my antivirus disappeared ", get some stupid first-result answer, and leave it at that. Today as I am following my first animation course online (well done me, yay) as I stare at the endless unjustified blue loading circle next to my cursor my idle mind wanders to my nonexistent antivirus, and i figure i should download a new one. So i do, and i run a scan, and it gives me a warning for one problematic file: Win64: Malware-Gen Trojan. Eek, I think, I have only an extremely vague notion of what that is but I'm sure it's no fun. So I find a lovely step by step guide with pictures made for idiots like me which walks me through the installation of a whole parade of malware scans, and the first one finds 22 malware files, of which 5 Trojans, PUMs to disable my firewall, security centre and antivirus, and 15 PUPs including stuff that apparently had to be manually installed by the user even though I've never seen it before, and one lovely shitty cherry on top, the bitcoin miner. After removing all those I run the next scan, it comes up with loads of new issues. Then I download and run a third scanner, still more problematic files found. And finally one in a file location that gives me some indication as when this started happening: in year 1 of college when I very briefly dipped my toes into a bunch of fancy programs and then never opened them again for not having had the time or energy. So there we have it folks, my beast processors have been mining bitcoin for someone for what may have been five years while I watched porn and browsed reddit, and now that i actually sat down to do what this laptop was bought to do, instead i am spending entire days ridding it of a wonderful garden of malware that someone has planted and tended. Karma, bitch. And the worst thing is that I will never know exactly what they did, if they were after more than my bitcoin potential, whether they have been accessing other stuff. Tomorrow I'm changing all my passwords and pins, growing a moustache, and moving to Florida. The morale of this story is: live up to the gifts you receive. TL;DR: I was gifted a brand new gaming laptop to become an animator. I downloaded a bunch of programs, never used them, maintained nonexistent safety practices and was an unknowing bitcoin mine for possibly five years.
I don’t know if it’s just me but I decided I wanted to mine some bitcoin using my gpu at first I kept getting virus alert messages that I gave access btw I downloaded nice hash directly from the GitHub page they redirected me to . So then later I noticed the symptoms of the virus begin to show up. The computer started running very slowly also all my norton firewalls were off somehow I did not switch them off every time I went to switch it back on norton crashed. Then comping to the internet I don’t know if it’s Cisco Webex but it never did this before I was using my phone and it kept loading and never joined . At this point I decided to disconnect my internet from my pc. It then connected . I think bandwidth was reduced but can’t be sure it could be webex’s fault .anyone confirm if this.I booted into safe mode after and after that I could not login using my password I don’t think that is a symptom of the virus but can someone confirm this. Update :- my pc now wasn’t booting up non of the ports were working my keyboard or mouse were not working ik cause they didn’t light up meaning no power . So I did a cmos reset didn’t work so my motherboard has the option to Re flash the bios it’s the x570 meg motherboard so I reflagged my bios and it booted up . Btw this never happened I build my pc myself tested each and every part only after I downloaded this garbage miner I started facing problems. When u think antivirus are lying I don’t think so y other miners work perfectly fine with the antivirus only this piece of shit software doesn’t . It somehow managed to go to my bios how the f did they do that idk but I swear u literally want trouble if u download this Edit 3:- ended up deleting windows and downloading it back from a usb stick
DeFi---- Global trend leader of decentralized financial plan
DeFi---- Global trend leader of decentralized financial plan DeFi Plan is decentralized financial plan,in Chinese name“project Difi”. There is very successful open source decentralized project around the world,which is run by a guy name Satoshi Nakamoto.Whose Chinese name is Zhong Bencong,invented bitcoin with justice and great love.It's the first free currency issued by the bottom of society in human history.Through 11 years,the belief and consensus of the bottom people,makes bitcoin appreciate 2000 million times. DeFi Plan as same as Satoshi Nakamoto invented bitcoin,open source in Microsoft's most authoritative Github.com.All the code,system and rule are deployed in the Ethereum.And run with decentralized public chain of smart contracts.Open source code such as the law including the creator of any person can not tamper with it. Whether you are participants of DeFi Plan or not,people all over the world can check the number of ETH on Ethereum's blockchain browser.Each static and dynamic benefit is recorded on the Ethereum public chain with great precision.Without open source centric projects,you just know how much money you have invented.But you never know how many bank notes,BTC or ETH are collected on the trader's account.Wake up every day, the first thing is log on to see if you can log on to thewebsite.And the first time is generate income to cash withdrawal.Because the system is likely to shut off the net in second.That moment is in fear!Over the past 20 years,only SMI,AGK and a small number of centralized projects are more successful.99.99％ of the total project with a very bloody fruit that is shut off the net. Today,DeFi Plan has a comprehensive layout of IPFS.People all over the world can participate in DeFi Plan and get IPFS mining and financing income. IPFS is the underlying Internet protocol HTTP,thoroughly solve the centralized data storage cost,low security performance,vulnerable to attack,not permanent storage and other shortcuting. Plastic United States Securities Regulatory Commission.Approved by SEC,Sequoia Capital Stanford University and other dozens of the world's top capital investment. HTTP storage market value has reach 3.2million dollars,IPFS is Internet decentralized storage revolution.IPFS will create a million dollars market.And IPFS's incentive layer token,FILECOIN will be the next million times in the currency.Start online with DeFi"869"Plan,each consensus can get DFP digital certificate 1:1 free,constant 1.1billion.Go online more than 200 global mainstream exchanges.The first 8 years plan to complete the independent decentralized exchange,decentralized B2C mall,decentralized games and other ecology.DFP certificate should be use in the entire ecological.The second 6 years plan:Landing ecology list in the global main board of the financial market,to accelerate the global layout of the blockchain production industry.The third 9 years plan is to complete the application of interconnecting all things in global intellgent blockchain. All the people around the world who want to escape the centralization project, with your non-critical 0.5ETH,can participate in DeFi Plan. DeFi Plan's system is based on the scientific human nature.More work and more gains.Regardless of the size of the contribution can produce benefits.The investment income is allocated scientifically between 0.3％~1.5％ of Turing encryption algorithm.The rule of system is directly calculation,algebra,single zone,double zone,sunlight,gradation,split,cooperation,mining profit,game profit and Turing encryption.Ethereum's smart contract is a powerful security system against DOSS and hacker attack.And effectively protecting t long-term development of DeFi Plan run in safe. You might ask:Can DeFi Plan achieve success? DeFi Plan will tell you that the entire Ethereum DeFi Ecology,has made more than 1 billion USD development.Decentralized financ will be the inevitable trend in the future. Wealth System: DeFi Plan is initiated by BTC and IPFS global miners in deep web.Open source at Microsoft's Github.com.And the development of Ethereum decentralized smart contract public chain.Automatic clearing on automatic operation. Ethereum smart contract has a strong DOSS and hacker attacks firewall comprehensive protection of the DeFi Plan code safe operation.Be fair,transparent,impartial and never shut off the net. All the people around the world who want to get of centralized programs.You can learn DeFi Plan by using 0.5 ETH as a reference.Let's learn about DeFi Plan. First: Income from investment and mining(0.3％-1.5％) 1.You invest 0.5-0.9 ETH to double income in the total. 2.you invest 1-5 ETH to 2 times income in the total. 3.you invest 6-10 ETH to 2.5 times income in the total. 4.You invest more than 11 ETH to 3 times income in the total. Note: every consensus can get DFP digital currency in 1:1. Second: Straight pile calculation in 5％ Third: Straight pile champion(top 100 in the world) Add 2％ every day to the championship pool.The prize pool up to 300 ETH and put in once every 7 days. 1.Champion wins 20％ ETH of the pool. 2.Runner-up wins 10％ ETH of the pool. 3.Third place wins 5％ ETH of the pool. 4.The forth-tenth win 2％ ETH of the pool. 5.The 11th-20th win 1％ ETH of the pool. The 21st-100th win 0.5％ ETH of the pool. Note:Champion to 100,according to the number of reward ETH 1:1 to get DFP digital currency. Fourth:node power income(enjoy static income) 1.Recommend 1 nodes: enjoy 1 generation 20％ 2.Recommend 2 nodes:enjoy 2 generation 10％ 3.Recommend 3 nodes:enjoy 3 generation 5％ 4.Recommend 4 nodes:enjoy 4 generation 3％ 5.Recommend 5-6 nodes:enjoy 5,6,7 generation 2％ 6.Recommend 7-8 nodes:enjoy 8,9,10 generation 1％ 7.Recommend 9 nodes:enjoy 11-29 generation 0.5％ 8.Recommend 10 nodes:enjoy 30 generation 10％ Fifth:Calculation of miner's gradation 1.(Ordinary miners) your recommended point,a market cumulative 200 ETH,a market cumulative 150 ETH you get under the umbrella of miners new 5％ ETH. 2.(VIP miners)your recommened point,a market cumulative 600 ETH,a market cumulative 450 ETH,you get under the umbrella of miners new 10％ ETH. 3.(Senior miners) your recommended points for miners,1 market cumulative 1800 ETH ,1350ETH accumulated in the market,you get under umbrella of miners added 1.5％ ETH. 4.(Super miners)your recommended point,a market cumulative 5400 ETH,a market cumulative 4050ETH,you get under the umbrella of miners new 20％ ETH. Note:Senior miners will get 2,000 DFP digital currency at one time,and super miners will get 5,000 DFP digital currency at one time. Sixth:Every day global mining pool dividends 1.VIP miners get 3％ global ETH weighted bonus. 2.Senior miners get 2％ ETH weighted bouns. 3.Super miners get 1％ ETH weighted bouns. Seventh:Direct access to VIP miners. One time investment of 30 ETH in your own wallet address,directly and permanently enjoy 10％ VIP miners and 3％ ETH weighted global dividends. DeFiPlan system is based on directly calculation,algebra,single zone,double zone,sunlight,gradation,split,cooperation,mining profit,game profit and Turing encryption.The system is scientific humanity and all contributors have profits. The global economic crisis caused by the new crown epidemic in 2020.At the Same time，human beings began to enter the era of artificial Intelligence and block chain on an all-round way.Enterprise bankruptcy and unemployment will be normal. Every years the ordinary people in the bottom layer who are cutting by the centralization fund project.There is not much really available to us.Thus worth fighting for DeFi Plan. Grand sailing is about to begin in mid-April 2020! Let us go hand in hand to create brilliant!
Hello all, I'm (among other things) a graduate student getting a master's degree in cybersecurity. This last quarter for one of my classes, I was tasked to examine and recreate an exploit. For the actual exploit I was examining the "anyone can spend" segwit addresses on the BCH chain, and in my research I found a $600k theft that seems to have gone completely unnoticed. You all might recall this $600k theft of segwit addresses, but it happened again in mid-February 2018 and there has been zero news about it. BCH block 517171 contains solely segwit-stealing transactions. If you look at any given transaction, the inputs are all segwit program hashes spending a P2SH segwit output. I only caught it by accident, as I was originally going to talk about the publicized November attack. The interesting thing I discovered about this was that it's harder to have stolen that segwit money than most people think. Both Unlimited and ABC nodes do not relay segwit-spending transactions, and Bitcoin ABC hard-coded in fRequireStandard, so you couldn't even force-relay them with a conf option. On top of that, miners keep their node IPs private for obvious avoiding-ddos-and-sybil-attack reasons, which means it's impossible to directly send transactions to miners. This means that the only way to actually execute this attack was to setup one's own mining pool running on a custom-modified client to allow non-standard transactions. Then you'd have to get enough hash power to mine a block yourself. I estimated the cost of renting enough hash power to do this at the time as around $30k-$60k to have a greater than 90% chance of mining a block within a 3 month window. In order to simulate the attack, I spun up BTC, LTC, and BCH nodes in Docker, and wrote a Python script. The Python script started at segwit activation on BTC and LTC and it scanned every transaction in every block looking for P2SH segwit inputs as well as native segwit outputs, since these are the necessary hash pre-images to spend P2SH segwit money on the BCH chain. The script then also scanned the BCH chain for any native segwit outputs, as well as recording all P2SH outputs. (This was all saved in a MySQL database.) Then, at any point in time, I could simply query for BCH unspent native segwit outputs as well as P2SH outputs for which I had a known segwit hash pre-image. (If this was an attack I was doing real-time, I would probably also have a large mempool on each node and monitor unconfirmed tx's for useful info as well, but since this was after the fact, I just queried blocks sequentially.) For the mining node that runs the pool, it would need to be firewalled behind (i.e. only connected to) an unmodified node in blocks-only mode, so that the segwit hash pre-images aren't transmitted out to the network, and so that no other unconfirmed transactions are transmitted in to the mining node. (The mining node should only be filling its block with segwit tx's in order to maximize the gain from the attack.) Then a script should run continuously to grab segwit utxos from the MySQL database and construct high-fee transactions to send directly to the mining node. Unlike the November attack, each input should be spent in its own individual transaction, so that in the event it is individually spent, I don't negate a tx with other inputs. The overhead on having different transactions for each input is only about 8 extra bytes (the tx version and the locktime), so I think this is a good trade-off. Then, the attacker simply rents hashing power and points it at his secret pool. By the time February rolled around and the attack happened, my MySQL database had about 40 million BCH P2SH outputs and each query took about 3 minutes to execute. This of course would have been fine in the 10-minute block world of Bitcoin and BCH, but it means that I stopped my Python script after that time, so I don't know about any possible other attacks that happened before the clean stack rule was hard-forked into BCH. It was pretty interesting to work through how this attack must have happened, and it was significantly harder to execute than I thought it would be given that all the money was "anyone can spend". However, the most interesting thing about all this is that nobody has noticed. There is literally no news or mention of block 517171 or any of the transactions in it. My theory is that it is money that nobody misses -- i.e. misprogrammed custom wallet software for BTC nodes accidentally also sent out BCH transactions to the same address, given that BTC and BCH shared the same history until August 2017. And whatever person or entity is running those nodes is only thinking about BTC money and is completely oblivious to its misprogrammed problem of shipping BCH to segwit P2SH addresses. Obviously, that's just a theory, but I think it's pretty reasonable. Given the intense community divide, I think it's very possible that a number of BTC users simply ignored money on the BCH chain, even though it's "free money" for them, simply out of ideological hatred. Whatever the case, nobody has posted anywhere complaining of money stolen in that block. It seems to have gone completely unnoticed. (Which is why I'm posting this.) It was an interesting case study and I'd be curious to hear if anybody has any addition information or thoughts about it. I believe this was a different person than the November theft, because the way it was done was different -- the November theft had all the money in one transaction, but this February theft was done with separate individual transactions. Additionally worth noting is that the address which received the bulk of the money is still active, which means they're still out there. Anyway, I thought this was interesting and worth posting.
In-depth discussion on security as it relates to cracked games
I just asked this question in other words on 4chan.org/v and unsurprisingly got mostly dismissive or unintelligent responses, so hoping for some well-informed and explained discussion if I'm so lucky. I'm in my 2nd year studying cybersec and as a habitual pirate have been trying to be super security conscious nowadays. Anyways; my question is -- what measures are sufficient to secure my system against a cracked game I don't trust 100%. I see a lot of posts here saying CODEX and SKIDROW are trustworthy, and usually false positives (at least I read that for CODEX), but lets assume we still don't trust it. Do you guys "just dont give it admin privileges" as one anon on 4chan said, would you use Comodo Firewall to sandbox it (my current best idea, just don't usually use that feature as much as I should), or is there a better way? I ask because even though for instance I'll get 68/70 passing scores on virustotal, those 2 flags always stay in the back of my mind and bother me, and I don't want some personal info scraper, bitcoin miner, or other malware silently inhibiting my system. Thanks for any contribution.
Bitcoin is slow because the block size was left at 1MB - 2MB with Witness Data on the SEGWIT network - after throwing the entire "team" developer of GitHub and being occupied by developers of what is now known as Blockstream. This size has been maintained and keeps referring to two issues: Mining in China and the decentralization of the nodes or transaction validators that you point out in the article. Mining in China occupies a good part of the pie that miners distribute - in turn these are the ones that confirm the transactions and undermine the blocks - since 2011 and these Chinese farms are behind something that in the West call "The Great Firewall "that prevents a stable connection and slows down the propagation of the block, its mining and confirmation of the transaction over 3 minutes   causing a large part of the mining coming from China and therefore the power of 'Hash' decreased drastically affecting the security of Bitcoin; The less Hash the greater the possibility of being attacked by the Bitcoin network through a 51% attack that could cause double spending - although this gives rise to many debates since the 51% attack on an already "mature" network like Bitcoin requires a Considerable expenditure on mining equipment to control 51% of the mining power and receiving the block reward and the commissions for confirmed transfer on each block would make it less likely that said miner or mining group would like to make a double expense upon receiving sufficient economic compensation. So only a malicious agent with the intentions of destroying the network and assuming the total losses on the investment of equipment would be willing to carry out such operation. Possibilities exist but these are reduced by being the miner compensated for their activity. In the same references to Chinese mining farms but in another more economical field; Bitcoin has 21 million that are obtained through mining and commissions on transfers. These 21 million are achieved over time and from there it becomes a deflationary element as there is no possibility of printing more coins. The question of the Bitcoin block costly and the influence of Chinese mining goes through the Bitcoin subsidy or, currently called as, block reward: When a miner puts a block in the chain he receives the Bitcoin reward that is "inside" "of that block and which is currently encrypted in 12.5. Every 210000 blocks the reward is reduced by half so in less than a year (312 days from today ) it will be reduced to 6.25 so the miners will see their subsidy fall in half unless Bitcoin's price per coin increases considerably or the mining farms begin to close or reduce mining equipment thus decreasing the power of the network's Hash. If Bitcoin reduces by half every 210000 blocks the subsidy per block to miners will come a time when they can only live and maintain their equipment for transaction fees and in a Bitcoin network with 7 transactions per second and a commission that tends to Increase the higher the number of movements in it makes it unfeasible for miners to continue in said 1MB network and above all that people want to use this payment method that is expensive and slow - more even than gold paper - Because remember that Bitcoin born as Peer 2 peer cash, not gold-. Therefore, if in time the subsidy or reward is going to be 0 or unable to cover the mining equipment expense, it is necessary to find a solution if the developers do not want to touch the block size. And this goes through three issues already raised in BIPs and about the community: RPF (Replace By Fee), Lightning Network and Increase in the number of Bitcoin since the demand for Bitcoin does not rise because it offers a quality service but for security and above all for the manipulation of Tether (USDT) and the large exchange houses: - The RBF consists in the substitution of a transaction without confirmations for another that would replace it with a higher commission eliminating the previous one of the mempool - the limbo of the transactions to be confirmed in Bitcoin -. Although this system seems effective, it does not eliminate the long-term problem of continuing to maintain the reduced block, but rather removes the problem of financing miners, but does not eliminate it and, above all, kills the operation of Bitcoin transactions by not eliminating the increase in commissions that would distance the user from its use. In addition to more easily allowing double spending  . - Lightning Network is a side-chain or second layer, that is, a software development not implemented in the Bitcoin network itself and therefore is not an element of the block chain so this should already be repudiated since being a External and non-auditable element such as Bitcoin gives rise to "blanks" and therefore lack of existence and possibility of auditing accounts  and even the loss of money or cancellation of the transaction  . It also faces the problem of routing since in a network in constant change with the openings and closures of payment channels it is unfeasible to establish a total and rapid diffusion to the nodes of LN - other than those of Bitcoin - so it comes into play Another new element of this network is the watchtowers in charge of ensuring compliance in open channels and over the entire LN network of payments. Obviously it requires an additional cost to hire this service and it is not yet implemented  and taking into account the pace at which Lightning Network is developed, it is doubtful that it will become available . In short, to use properly - which is not successful - LN you need a node valued at $ 300 , a watchtower, have a channel open 24/7 and with sufficient funds to carry out transactions    . - The increase in the Bitcoin offer was raised fleetingly by developer Peter Todd   and will become an open debate in a few years when the mining block reward is low and the price of Bitcoin cannot be sustained only with uncontrolled printing of Tether and the manipulation on the price of the currency   next to the collusion of the exchange houses headed by BitFinex  and personalities of the world 'crypto'  - if he survives long enough to see that moment since they are already behind Bitfinex for money laundering . When that moment arrives I am sure that a BIP - Bitcoin Improvement Proposal - will be launched by Blockstream or directly notified of the measure destroying the essence of Bitcoin and the TRUE DECENTRALIZATION: THE PROTOCOL. This brings us to the second reason for the slowness of Bitcoin. The correct and true decentralization goes through the code and the team of developers and maintainers, not any other. The protocol must be engraved in stone  and that the action of the miners distribute and decentralize the network and they maintain the nodes and the transactions in a completely capitalist economic relationship. Investing in machines and communication improves access, speed and spread of transactions and blocks and makes miners true competitors as well as facilitating the transmission of money and all kinds of transactions . The decentralization of the nodes was the other great reason to prevent the increase of the block and therefore the speed in the transaction. It is based on a false premise to base the decentralization of Bitcoin - which is nowhere on the whitepaper - on the raspberry nodes. The dispersion of the transaction and all the stages of the transaction and the blocks depend on the miner and his team, as well as the search for excellence in communications to avoid orphan blocks - which are stipulated in the Nakamoto consensus and are part of Bitcoin and not they throw no problem in the transactions only in the resolution of the reward of the block that affects the miners and should seek greater efficiency - and reorganizations. The audit on the Bitcoin network can be perfectly performed without there being a Bitcoin node in each house, in fact it would cause the same routing problems that occur / will occur in the LN network. Decentralization should not go through nodes but through developers and to a lesser extent by miners. If a protocol is continually being altered by developers they have the power of the network and it must be in constant struggle by the miners through the commission on transactions. Due to these two factors, the BIP0101 proposed by the developers that Satoshi left in charge  and that originated the creation of Bitcoin Unlimited was rejected, later it was attacked due to its recent creation through DDoS attacks in a statement of intentions of the network Blockstream bitcoin   remaining as a residual element. These two reasons are the cause of the drowning suffered by the Bitcoin network - including many other elements that were eliminated and that corresponded to the initial code completely changing the nature and destiny of Bitcoin that are not relevant and I will not enumerate -, Any other reason is propaganda by those who want to keep Bitcoin drowned in order to enrich themselves with mining sub-subsidies and second-layer software like LN. Bitcoin has a structure similar to gold and can collect certain attributes of it but its destination in efficient and fast transmission as effective - among other transactions. Bitcoin was designed to professionalize miners and create a new industry around them, so mining centers will become datacenters  and they will replicate all transaction logs and even this professionalization will eventually lead to specialization in other types of transactions born new industries around you that will support the nodes according to specialization - Data, asset transfers, money, property rights, etc ... - Bitcoin scales to infinity if they leave the protocol FREE enough to do so. P.D: Core, since the departure of Hearn and Andersen, they know perfectly well what they are doing: The worst breed from the Cyberpunk movement has been combined with the worst breed of the current synarchy; The ends always touch.  https://np.reddit.com/btc/comments/3ygo96/blocksize_consensus_census/cye0bmt/  https://www.youtube.com/watch?v=ivgxcEOyWNs&feature=youtu.be&t=2h36m20s  https://www.bitcoinblockhalf.com/  https://petertodd.org/2016/are-wallets-ready-for-rbf  https://www.ccn.com/bitcoin-atm-double-spenders-police-need-help-identifying-four-criminals/  https://bitcointalk.org/index.php?topic=4905430.0 https://www.trustnodes.com/2018/03/26/lightning-network-user-loses-funds || https://www.trustnodes.com/2019/03/13/lightning-network-has-many-routing-problems-says-lead-dev-at-lightning-labs  https://diar.co/volume-2-issue-25/  https://blockonomi.com/watchtowers-bitcoin-lightning-network/  https://twitter.com/starkness/status/676599570898419712  https://store.casa/lightning-node/  https://bitcoin.stackexchange.com/questions/81906/to-create-a-channel-on-the-lightning-network-do-you-have-to-execute-an-actual-t  https://blog.muun.com/the-inbound-capacity-problem-in-the-lightning-network/  https://medium.com/@octskyward/the-capacity-cliff-586d1bf7715e  https://dashnews.org/peter-todd-argues-for-bitcoin-inflation-to-support-security/  https://twitter.com/peterktodd/status/1092260891788103680  https://medium.com/datadriveninvestotether-usd-is-used-to-manipulate-bitcoin-prices-94714e65ee31  https://twitter.com/CryptoJetHammestatus/1149131155469455364  https://www.bitrates.com/news/p/crypto-collusion-the-web-of-secrets-at-the-core-of-the-crypto-market  https://archive.is/lk1lH  https://iapps.courts.state.ny.us/nyscef/ViewDocument?docIndex=8W00ssb7x5ZOaj8HKFdbfQ==  https://bitcointalk.org/index.php?topic=195.msg1611#msg1611  https://github.com/bitcoin/bips/blob/mastebip-0101.mediawiki  https://www.reddit.com/bitcoinxt/comments/3yewit/psa_if_youre_running_an_xt_node_in_stealth_mode/  https://www.reddit.com/btc/comments/3yebzi/coinbase_down/ https://bitcointalk.org/index.php?topic=532.msg6306#msg6306"
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