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What is the fraction of the Bitcoin mining-power that might be engaged in Selfish-Mining?

Is there an estimate for the fraction of miners engaged in Selfish Mining within the BTC network? In light of the publication The Impact of Selfish Mining on Bitcoin Network Performance (2021), selfish miners not only gain an extra (unfair) share of the block rewards but also increase the chance of forking the network and implementing double-spending attacks. To accomplish that, a group of mining pools holding ~25% of the mining power would be enough to attack the network. I believe this should get more attention from the community since it represents a significant cut in threshold-security from the famous…

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ETH DeFi Project ForceDAO Got Hacked Moments After Launch

ETH DeFi project ForceDAO, got hacked a few moments after the launch, by five hackers this morning and revived concerns around the experimental sector with huge amounts of money flowing into old projects so let’s read some more in our latest Ethereum news today. The ETH DeFi project ForceDAO is a decentralized autonomous organization for so-called “quant finance.” The goal of the project is to leverage high returns and to produce superior returns by providing strategies and rewarding the strategists with powerful incentives. Over the past week, the protocol’s developers said they will airdrop some tokens to users of other…

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Millions Drained in ForceDAO Attacks, White Hat Returns Funds

Another multi-million dollar rug pull has hit the DeFi space. This weekend, ForceDAO is the victim.  Disaster for ForceDAO  ForceDAO has suffered a major attack.  The exploit centers on a bug in the xFORCE contract’s code, which allowed anyone to call the “deposit” function regardless of whether they were holding FORCE tokens. That meant it was possible to mint xFORCE tokens from the contract without locking any tokens in the vault. Anyone could then exchange these tokens for FORCE by calling the “withdraw” function in the contract.  Several attackers took advantage of the exploit earlier this morning. One of them…

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How does the bitcoin core protect against initial DNS seed changes?

While the bitcoin network is essentially P2P, one still needs to identify an initial node to connect to. I understand that a method for such initial connections is connecting to known DNS seeds, e.g seed.bitcoin.sipa.be. If a malicious actor were to, hypothetically, redirect this "link" to a seed that points to a different network, where, for example, he has 51% majority, could any damage be caused by this ?

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Two threats to Bitcoin: Quantum Computing and Mining farm seizures – what new BIPs are needed before it is too late?

How resistant is bitcoin blockchain against physical attacks? Contrary to other consensus mechanisms, Bitcoin's PoW model is dependent on massive Mining Farms with tons of ASIIC hardware. These farms are known to everyone, especially the government of respective country. Every mining farm in every country, could be sized as one example of a possible future. What does the bitcoin blockchain do to mitigate such attack of government seizure of all mining farms in one country? The bitcoin network is not using signatures or encryption methods that are especially suited against quantum computer attacks. Especially Bitcoin's ECDSA and the PoW mining…

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What are the easiest ways to attack Bitcoin if governments plan to do it in future?

If you were a sophisticated state actor and wanted to attack bitcoin, how would you do it?— Matt Odell (@matt_odell) August 4, 2020 Matt asked this question few days back on twitter and its important for many reasons. One of the reasons is if you understand the problems or risks you can think of solutions or ways to minimize it. My response to the question is: Find vulnerabilities in full node implementations and exploit them with stealth. Less people use full nodes and rely on third parties. KYC/AML to link UTXOs and transactions with people. Shutdown or Censor internet if…

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What are the different ways to attack Bitcoin if governments plan to do it in future?

If you were a sophisticated state actor and wanted to attack bitcoin, how would you do it?— Matt Odell (@matt_odell) August 4, 2020 Matt asked this question few days back on twitter and its important for many reasons. One of the reasons is if you understand the problems or risks you can think of solutions or ways to minimize it. My response to the question is: Find vulnerabilities in full node implementations and exploit them with stealth. Less people use full nodes and rely on third parties. KYC/AML to link UTXOs and transactions with people. Shutdown or Censor internet if…

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Coinbase Managed To Dodge The $9M ETC 51% Attack And Here’s How

Coinbase managed to avoid the latest $9 million Ethereum Classic 51% attacks in their new report where they outline how this impacted their system so let’s find out in the Coinbase news today. Coinbase managed to dodge the attacks as they detailed in their analysis of the 51% attack against the Ethereum Classic blockchain. The exchange was running multiple ETC node clients during the attack and saw the impact of the fork of these systems. They are taking some legal action right now against the attackers. Coinbase released a report explaining what went on during the recent ETC 51% attack.…

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