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Researchers say they discovered consensus level attack on Ethereum — miners cheating the system to earn more
A research paper published by The Hebrew University in Israel reports having discovered the “first evidence of a consensus-level attack on a major cryptocurrency. ” The paper is currently awaiting peer review but utilizes publicly available on-chain data and Ethereum’s open source codebase to affirm its conclusions. дальше »
2022-8-7 01:00 | |
[Update] Research explores how Zcash and other privacy coins can de-anonymize users, suggests defenses
[Update at 14:50 UTC] Benjamin Winston, Director of Security at ECC, told CryptoSlate via a tweet the paper was simply a “review” of existing material and proposes a new attack that is based on a “faulty understanding” of the Zcash protocol by the Hush team. дальше »
2020-5-13 13:00 | |
Vitalik Buterin Eyes Research on Privacy Coin Monero’s Traceability
By CCN: Vitalik Buterin has expressed an interest in incorporating privacy features into Ethereum. He is partial to the ZK-SNARKS technology that is used in privacy coin Zcash. Nonetheless, his senses appear to be particularly keen about any developments surrounding privacy protocols. дальше »
2019-5-11 05:30 | |
VeriBlock’s Bitcoin-Backed Security Protocol Goes Live
After a year on its testnet, the VeriBlock blockchain went live yesterday on the Bitcoin mainnet, allowing exchanges, wallet providers, merchants and other crypto businesses to leverage Bitcoin’s robust blockchain security. дальше »
2019-3-27 19:35 | |
Op Ed: Why It’s Unsafe to Store Private Crypto Keys in the Cloud
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. дальше »
2019-2-19 00:19 | |
Ten Years Later, a Reflection on Bitcoin’s Genesis and Satoshi’s Timing
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. дальше »
2019-1-3 07:14 | |
Op Ed: Bitcoin Is a Declaration of Our Monetary Independence
Nick Spanos is an early adopter and innovator in the blockchain space. He is best known for launching Bitcoin Center NYC, the world’s first live cryptocurrency exchange, in 2013, right next to the New York Stock Exchange — as immortalized in the Netflix documentary “Banking on Bitcoin. дальше »
2018-12-15 21:43 | |
Quantum Computers Can Pose A Risk To Blockchain Technology
Although blockchain networks are designed to be secure, immutable, and tamper-proof, a new research paper from Cornell University found that blockchain networks are, however, susceptible to attack by a sufficiently large quantum computer. дальше »
2018-11-27 20:00 | |
Switzerland: Trojan horses are evolving to target cryptocurrency exchanges
A computer virus that mines the anonymous cryptocurrency Monero has been ranked as the sixth most significant malware to hit Switzerland in the first half of this year. Swiss researchers also discovered that cybersecurity threats once focused on breaking into online banking services have pivoted to more efficiently attack cryptocurrency exchanges. дальше »
2018-11-8 19:33 | |
Report Links 74% of Bitcoin Mining to China, Sees Threat to Network
Bitcoin, the world’s most sought-after cryptocurrency, could be at the wish and whim of Asia’s economic giant. A recent study titled “The Looming Threat of China: An Analysis of Chinese Influence on Bitcoin,” jointly researched by Princeton University and Florida International University researchers, suggests China’s mining scene has an overwhelming influence over Bitcoin, something that could invite network manipulation. дальше »
2018-10-11 00:29 | |
Research: China has the power to destroy Bitcoin
A damning new study has suggested China holds threatening influence over Bitcoin – and perhaps even the ability to attack and ultimately destroy the entire Bitcoin network. Academics from Princeton and Florida International Universities have explored how China “threatens the security, stability, and viability of Bitcoin” with its “political and economic control over domestic [cryptocurrency] activity […] [and] internet infrastructure. дальше »
2018-10-8 19:07 | |
Study Reveals Growing Sophistication in Malicious Mining of Cryptocurrency
Several Chinese researchers from Fudan University, Tsinghua University and the University of California Riverside have produced the first systematic study of the malicious mining of cryptocurrencies, known as cryptojacking, unveiling increasing complexity over time. дальше »
2018-9-25 23:59 | |
eCash Founder David Chaum Makes Bold Promises with Elixxir Blockchain
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. дальше »
2018-9-22 23:59 | |
Vitalik Buterin’s 99% Fault Tolerant Consensus Makes 51% Attacks Unattainable Via Honest Nodes
Vitalik Proposes New Consensus Algorithm That Makes a 51% Attack Impossible Vitalik Buterin, Ethereum’s co-founder, has released a very complex paper in which he proposes a new consensus algorithm that eliminates the risk of a 51% attack. дальше »
2018-8-13 19:37 | |
A Guide to 99% Fault Tolerant Consensus
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). дальше »
2018-8-9 04:03 | |
Bitcoin Magazine’s Week in Review: Challenging the Way It’s Always Been Done
This past week, we talked to three security experts about how to design smarter and more secure smart contracts. Google is dipping its toe in the blockchain waters by introducing integrations for applications built with Ethereum and Hyperledger. дальше »
2018-8-5 16:08 | |
Canada Central Bank: Bitcoin Safe From 51% Attack, Double Spending
Canada’s Central Bank (BOC) released a working paper this month, Incentive Compatibility on the Blockchain. In it, BOC seems to argue the world’s most popular cryptocurrency, Bitcoin, is safe from a 51% attack, double spend scenario through the right incentive structure and proof of work (POW). дальше »
2018-7-27 22:45 | |
Great Illusion of Cryptocurrencies: Bank On Finland’s “Fallacy” Attack Report Recap
Bank On Finland’s Recent Report Is An Attack On Digital Currency A recent report published by Bank of Finland titled “The great illusion of digital currencies” attempts to prove that the concept of a digital currency is a “fallacy. дальше »
2018-7-3 22:44 | |
Op Ed: Venmo Offers the Ultimate Cryptocurrency Experience
Venmo could be the ultimate cryptocurrency experience from a user-experience perspective. Any cryptocurrency that seeks to power the future of global transactions must ensure that it is supported by a payment system that is simple, user-friendly and free — like Venmo. дальше »
2018-6-11 16:51 | |