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The WannaCry ransomware attack was a worldwide cyberattack in May 2017 by the WannaCry ransomware cryptoworm, which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency. [4]
The CryptoLocker technique was widely copied in the months following, including CryptoLocker 2.0 (thought not to be related to CryptoLocker), CryptoDefense (which initially contained a major design flaw that stored the private key on the infected system in a user-retrievable location, due to its use of Windows' built-in encryption APIs), [28 ...
The CryptoLocker ransomware attack was a cyberattack using the CryptoLocker ransomware that occurred from 5 September 2013 to late May 2014. The attack utilized a trojan that targeted computers running on Microsoft Windows , [ 1 ] and was believed to have first been posted to the Internet on 5 September 2013. [ 2 ]
(Reuters) -Payments from crypto-related ransom attacks nearly doubled to a record $1 billion in 2023, blockchain analytics firm Chainalysis said on Wednesday. However, losses stemming from other ...
DoublePulsar is a backdoor implant tool developed by the U.S. National Security Agency's (NSA) Equation Group that was leaked by The Shadow Brokers in early 2017. [3] [citation needed] The tool infected more than 200,000 Microsoft Windows computers in only a few weeks, [4] [5] [3] [6] [7] and was used alongside EternalBlue in the May 2017 WannaCry ransomware attack.
September: The CryptoLocker Trojan horse is discovered. CryptoLocker encrypts the files on a user's hard drive, then prompts them to pay a ransom to the developer to receive the decryption key. In the following months, several copycat ransomware Trojans were also discovered. December: The Gameover ZeuS Trojan is discovered. This type of virus ...
Once competing nodes are gone, the attacking node can have a majority of stake on the crypto network, enabling it to conduct a 51% attack as the only validating node. Proof-of-Fake-Stake In a ...
Hackers drained almost $200 million in cryptocurrency from Nomad, a tool that lets users swap tokens from one blockchain to another, in yet another attack