Litecoin Suffers Denial-of-Service Attack Due To Network Bug — Details

Last week, the Bitcoin network suffered from a denial-of-service attack that forced the core development team to patch the core reference design. Details are sketchy. CoinDesk first received word of the problem from core developer Jeff Garzik. "Currently dealing with an ongoing, network-wide event," he told us in a hurried email. Last Friday, Gavin Andreesen announced a forthcoming 0.8.3 release of the reference implementation. "This will fix a denial of service attack that affects some network nodes," he said, adding that details would be released after the fix. Garzik differentiates....

Georgia-based CampBX has been having issues with their service since at least Thursday of last week, according to tweets transmitted by the crypto-currency exchange. Beginning on the 3rd of July, the company took to social media to report that their service was dealing with a DDOS attack. For those unfamiliar, a DDOS is a distributed denial of service attack. An attack of this nature overwhelms a target server/s with requests, making the service slow or even unreachable by legitimate users. A D-DoS attack is in progress. We are working to mitigate it. - CampBX - Bitcoin (@CampBX) July 3,....

A distributed denial of service (DDOS) is taking place against the bitcoin network and disrupting a number of exchange operations, Blockchain.info chief security officer Andreas Antonopoulos has revealed on Twitter. The attack is taking advantage of the transaction malleability issue we've been hearing a lot about since Mt. Gox mentioned it extensively in an update on withdrawal issues Monday. Antonopoulos says user funds across the network are safe, and Blockchain.info's implementation of a bitcoin wallet is not affected, though the same can't be said for other bitcoin properties, in that....

Kristov Atlas has developed a quick tool called TorBan which can warn of a Bitcoin-over-Tor de-anonymization attack, called the "Luxembourg Attack." The "Luxembourg Attack," first described by University of Luxembourg researchers Ivan Pustogarov and Alex Biryukov earlier this year, involves the use of thousands of Bitcoin nodes and a handful of controlled Tor exit nodes to "de-anonymize" users using Bitcoin over Tor. The Luxembourg research paper, titled "Bitcoin over Tor isn't a good idea" detailed the potential attack. The Bitcoin network has built-in denial-of-service (DoS) attack....

BTCC, the Shanghai, China-based digital currency exchange, suffered a distributed denial of service (DDoS) attack, the company noted on Dec. 31, 2015, on Twitter. The attack hampered BTCC’s access to its APIs and other services for a period of time. It marks the most recent in a growing number of DDoS attacks demanding bitcoin ransoms, including one in November against CCN. “Our website is under DDoS attack, which is hampering access to our APIs and other services,” BTCC tweeted on Dec. 31. “We are working quickly to resolve the situation.” In referencing a previous DDoS attack faced by....