2020-8-8 16:58 |
The attacker attempted to double-spend roughly $3.3 million during the second attack. origin »
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Barely a week after nefarious agents took control of the Ethereum Classic network, double spending $5. 6 million worth of ETC, the 24th largest project by market cap is once again under attack. Earlier today (Aug 6, 2020), CoinDesk reported that 4,000 ETC blocks were “reorganized” in a classic 51 percent attack.
2020-8-6 17:00 | |
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Ethereum Classic suffered a 51% attack last weekend, the second such attack in less than two years. Initial investigations at the time showed no evidence of double-spending. Ethereum Classic (ETC) price drops after reports of a 51% attack.
2020-8-6 15:01 | |
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Ethereum Classic has experienced yet another malicious 51% attack—the second in under a week. Binance has frozen all Ethereum Classic deposits and withdrawals. Reports have shown that a 51% attack on the Ethereum Classic blockchain reorganized 4,000 blocks on the chain.
2020-8-6 11:08 | |
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A second reorg attack hit the Ethereum Classic blockchain in the last week. After two consecutive blows to the blockchain’s immutability, the community needs to rally to find a viable...
2020-8-6 09:16 | |
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Ethereum Classic has suffered its second 51% attack in a week after 4,000 blocks were reorganized earlier today.
2020-8-7 08:40 | |
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Ethereum Classic has suffered a 4,000-block long reorganization, its second such incident in five days. The first attack, which saw more than 3,000 blocks reorged, saw an attacker steal more than 800,000 ETC, worth about $5.6 million.
2020-8-6 08:10 | |
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Ethereum Classic has experienced two 51% attacks in the past two years, suggesting low overall network security. As the network hash rate continues to decline, future 51% attacks become a greater possibility as the cost for an attack also continues to decline.
2020-8-5 15:01 | |
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As if one attack against a DeFi protocol is not enough, bZX keeps generating headlines. The protocol has been “abused” for the second time in less than a week. One could argue that the first incident is not even a hack.
2020-2-19 02:00 | |
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bZx, the DeFi protocol on the receiving end of the ecosystem’s latest exploit, has been hit with a second attack, this time using the protocol’s own flash loans that were...The post 2,388 ETH Estimated Lost in bZx’s Second Exploit appeared first on Crypto Briefing.
2020-2-18 10:57 | |
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Bitcoin hard fork, Bitcoin Gold (BTG) that aims to be GPU-mineable by using the Equihash algorithm also known as “Zhash” suffered a 51 attack last week. A 51% attack is a potential attack on a blockchain network where a single entity or organization is able to control the majority, more than 50% of the hash […]
2020-1-27 17:50 | |
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Bitcoin Gold (BTG) has just suffered a 51-percent attack which resulted in the double-spending of 7,167 BTG (~$72,000). This isn’t the first time that the Bitcoin clone has been attacked in this fashion.
2020-1-28 13:59 | |
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Bitcoin Gold, a minor fork of Bitcoin, fell victim to a 51% attack last week, according to an independent report on GitHub. Bitcoin Gold’s Low Hashrate to Blame As explained by Vertcoin maintainer James Lovejoy, the cryptocurrency suffered two deep reorganizations on Thursday, Jan.
2020-1-27 12:06 | |
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The MetaMask app has been suspended from the Google Play Store. Citing concerns that the app mined on user devices, this is the second time this week that Google censors cryptocurrency ecosystems hosted on its platforms.
2019-12-27 15:02 | |
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After the tangle in Taipei between Arthur Hayes and Nouriel Roubini, Bloomberg journalist Tim Culpan claims that securities regulators in the United States – most likely the CFTC – are looking into the matter.
2019-7-19 15:56 | |
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Lake City, a small town in northern Florida, paid almost $500,000 in Bitcoin to hackers following a ransomware attack on the city’s computer systems. This is the second time in two weeks a Florida town has been a victim of a ransomware attack, bringing the total ransomware payment in the state to over $1 million.
2019-6-29 09:59 | |
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Officials in Lake City, Florida, paid $500,000 worth of bitcoin to hackers who had brought down the city's computer system for two weeks. Lake City is the second Florida town in as many weeks to pay a bitcoin ransom as a result of a ransomware attack.
2019-6-27 22:16 | |
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Cities in the United States are under attack from hackers. In recent times, cities like Baltimore in Maryland, Cartersville in Georgia and Lynn in Massachusetts have all suffered attacks. And now, a city in the state of Florida has caved in and decided to pay the hackers.
2019-6-27 18:17 | |
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A second town in Florida has paid over $500,000 in Bitcoin to hackers following a ransomware attack. Officials in Lake City paid the hackers after their computer systems were down for two weeks.
2019-6-27 17:13 | |
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Special thanks to Jinglan Wang for review and feedback One question that often comes up is: how exactly is sharding different from sidechains or Plasma? All three architectures seem to involve a hub-and-spoke architecture with a central “main chain” that serves as the consensus backbone of the system, and a set of “child” chains containing actual user-level transactions.
2019-6-14 04:03 | |
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By CCN: Most of the Baltimore City’s government systems have been locked down since May 7th as a result of the “Robbinhood” ransomware attack. The successful crypto locking has forced the city to go “manual” in most aspects of its daily business and has affected several areas of life.
2019-5-16 08:27 | |
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Electrum servers are still under a sustained Denial-of-Service (DoS) attack. The wallet developers announced the issue on April 7, 2018. In correspondence with Bitcoin Magazine, Electrum developer Thomas Voegtlin speculated that the attack may be a form of retaliation from a phishing attacker who has been targeting Electrum in recent weeks.
2019-4-11 21:47 | |
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In its second attack in less than six months, Electrum announced on April 7, 2019, that it was targeted in a fake wallet attack. Attack of the Wallets In an ideal situation, crypto wallets would be virtually impenetrable and free from threats.
2019-4-9 17:00 | |
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Special thanks to Glen Weyl, Phil Daian and Jinglan Wang for review Over the last few years there has been an increasing interest in using deliberately engineered economic incentives and mechanism design to align behavior of participants in various contexts.
2019-4-5 04:03 | |
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Bithumb was hacked for the second time in less than a year as attackers managed to steal 3 million EOS coins and 20 million XRP. The subsequent laundering of the $21 million dollar haul was then tracked in real time by a twitter analyst, as the hacker swapped the tainted coins for other cryptocurrencies on non-KYC exchanges.
2019-3-30 14:57 | |
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Bitcoin hash rate, the computing power securing the network, has reached levels not seen since early November 2018. Bitcoin Hash Rate May Have ‘Bottomed’ March 19th saw the Bitcoin hash rate surge past 52 quintillion hashes per second according to data from Blockchain.
2019-3-20 12:00 | |
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There are two primary reasons why storing your private crypto keys in the cloud is a bad idea. First, your cloud provider represents a centralized honeypot that could experience a security breach, allowing cyber criminals to access your data.
2019-2-19 00:19 | |
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Cryptocurrency, Hacks, Scams–On a day when crypto prices traded sideways, with little change in valuation to start the second month of the year, two of cryptocurrency’s more popular wallets have reported experiencing phishing attacks.
2019-2-6 05:18 | |
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On January 29, 2019, Elementus reported that Cryptopia has suffered a second attack that led to the loss of 1,675 ether (ETH) tokens after suffering a similar attack on January 14, 2019. On January 15, 2019, New Zealand-based crypto exchange Cryptopia suspended activities after suffering a hack that led to significant losses.
2019-1-31 13:00 | |
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Whenever I claim that bitcoin is the only decentralized cryptocurrency, I get one of two arguments:My X coin is also decentralized. Bitcoin isn’t decentralized because of Core and/or miners.
2019-1-21 21:52 | |
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Although the Bitcoin price stumbled, fundamental developments for the crypto industry’s facets remained strong during the second week of 2019. New York opened a so-called “Blockchain Center,” purportedly funded by Microsoft, Ripple achieved a key milestone, and Bloomberg claims that Japanese regulators may green light a Bitcoin exchange-traded fund (ETF) in the future.
2019-1-13 21:00 | |
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The recent 51% hack suffered by Ethereum classic known as the brother of ethereum the second rated Cryptocurrency on the 5th of January has thrown the crypto market into speculation of more 51% attack taking place.
2019-1-10 11:02 | |
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Ethereum Classic, a fork of Ethereum, was hacked using a 51 percent attack on the coin’s blockchain, with more than $1 million worth of ETH stolen so far. Ethereum Classic Remains Under Siege A less popular offshoot of the world’s second largest cryptocurrency is currently in its third day of the siege, as it was hacked […] The post Ethereum Classic Network Loses More than $1 Million In 51% Attack appeared first on CryptoSlate.
2019-1-10 03:33 | |
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Ethereum Classic, one of the most popular forks of the second most valuable cryptocurrencies by marketcap has suffered a 51-percent attack. After Chinese blockchain security firm SlowMist raised the alarm, an analyst at CoinNess dug a little deeper.
2019-1-8 13:34 | |
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October 31, 2008, and January 3, 2009. The two dates have cemented themselves with Promethean significance into Bitcoin’s lore. On the October 31, Satoshi Nakamoto published the Bitcoin white paper, a constitution of sorts for his revolutionary monetary system and its intrinsic currency.
2019-1-3 07:14 | |
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A major vulnerability has been exposed in Electrum, a leading Bitcoin wallet with several forks that are compatible with other cryptocurrencies. This is the second Electrum bug in a single year, and the crypto community is now debating the merits of the wallet.
2018-12-29 23:09 | |
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One of the worst things to happen to a proof-of-work cryptocurrency is a 51 percent attack. Such attacks undermine the immutability—and consequently the trust—in a blockchain. Satoshi Nakamoto summarized proof-of-work as “one-CPU-one-vote.
2018-12-10 13:20 | |
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This is a guest post by Johter V. Seriaum On the second of December 2018, a double spend attack was performed on Vertcoin. A large amount of ASIC hashrate was rented anonymously through rental services to attack the 4 year old blockchain.
2018-12-3 20:18 | |
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A bug centering around a new Ethereum token, GasToken, which was enabling abuse on cryptocurrency exchanges, appears to have been resolved. The details are provided in a report originally published on November 13, 2018, that discussed how the bug was exploited by attackers, and what digital platforms could do if they wished to protect their hot wallet funds.
2018-11-22 00:34 | |
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“Go for the Jugular” is the advice George Soros gave to his team during his famous attack on the British pound for a profit of $1 billion on so-called Black Wednesday in 1992.
2018-11-15 18:50 | |
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Monero has officially released its Malware Response Workgroup website yesterday. In an effort to help protect Monero’s community, the website aims to provide resources to educate about the types of malware that may take advantage of users.
2018-9-29 23:18 | |
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Think you know the ins-and-outs of bitcoin? Test yourself with 30 questions that grill you on Bitcoin’s history, technology and politics. The 30 questions are split up into three segments ranging from novice to intermediate to expert, and cover a wide range of topics across the Bitcoin landscape.
2018-9-26 02:13 | |
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Over 30 years after creating eCash, a predecessor of bitcoin and other cryptocurrencies which spawned the Cypherpunk movement of the 1980s, Dr. David Chaum is back in the public eye with a claim of having invented “the world’s fastest cryptocurrency.
2018-9-22 23:59 | |
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John McAfee endorsed Bitfi wallet is in the news once again. The “unhackable” wallet has been hacked again by two security researchers. Both claim that they used a cold boot attack to hack into the wallet and expose vulnerabilities in the wallet’s security.
2018-9-2 15:59 | |
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The Ethereum blockchain seems to be under some sort of attack by a network spamming that is causing congestion within the network which in turn, has had a negative impact on the base fee for the verification of an Ethereum transaction.
2018-8-9 23:00 | |
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Special thanks to Emin Gun Sirer for review We’ve heard for a long time that it’s possible to achieve consensus with 50% fault tolerance in a synchronous network where messages broadcasted by any honest node are guaranteed to be received by all other honest nodes within some known time period (if an attacker has more than 50%, they can perform a “51% attack”, and there’s an analogue of this for any algorithm of this type).
2018-8-9 04:03 | |
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Even though we are well into our second decade of widespread internet use, the term ‘cyber attack’ is still a relatively new and daunting one for many people. Many individuals and small businesses entrust their cybersecurity to off-the-shelf antivirus softwares, which can effective but certainly aren’t foolproof. When it comes to preventing cyber attacks, everyone […]
2018-7-27 16:04 | |
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Special thanks to Eli Ben-Sasson for ongoing help, explanations and review, coming up with some of the examples used in this post, and most crucially of all inventing a lot of this stuff; thanks to Hsiao-wei Wang for reviewing Hopefully many people by now have heard of ZK-SNARKs, the general-purpose succinct zero knowledge proof technology that can be used for all sorts of usecases ranging from verifiable computation to privacy-preserving cryptocurrency.
2018-7-21 23:03 | |
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In the wake of former presidential candidate Mitt Romney’s decision to run for Senate in Utah, the state’s online voter registration database has suffered more than one billion hacking attempts per day.
2018-7-12 01:28 | |
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Hackers have reportedly made away with cryptocurrencies worth $30 million from Bithumb, South Korea's leading exchange, according to reports from a blog update. The exchange states that due to the hack, deposits and withdrawals will be temporarily suspended until further notice.
2018-6-20 20:25 | |
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BitMEX Research has identified what it believes to be a double-spent Bitcoin transaction... worth $21.
Bitcoin Gold (BTG) has suffered another 51% network exploit with the attacker reportedly double-spending $75,000 in BTG tokens. Details of the Bitcoin Gold 51% Attack According to MIT crypto researcher James Lovejoy, Bitcoin Gold, one of the Bitcoin hard forks is once again the victim of a 51% attack.
A 51% attack on the Bitcoin Gold blockchain lead to double spend of $70,000 worth of the cryptocurrency