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Cryptojacking is the act of exploiting a computer to mine cryptocurrencies, often through websites, [1] [2] [3] against the user's will or while the user is unaware. [4] One notable piece of software used for cryptojacking was Coinhive, which was used in over two-thirds of cryptojacks before its March 2019 shutdown. [5]
Crypto-1 is a cryptosystem developed by NXP for use on MIFARE chips. The system is proprietary and originally the algorithm has not been published. Upon reverse engineering of the chip, researchers from the University of Virginia and the Chaos Computer Club found an attack on Crypto-1 exploiting a poorly initialized random number generator. [13]
In June 2018, South Korean exchange Coinrail was hacked, losing over $37M worth of crypto. [18] The hack worsened an already ongoing cryptocurrency selloff by an additional $42 billion. [19] On July 9, 2018, the exchange Bancor, whose code and fundraising had been subjects of controversy, had $23.5 million in cryptocurrency stolen. [20] [21]
The indictment says that several weeks before the FTX hack, the scheme looted $293,000 in virtual currency from one victim, and days later, stole more than $1 million in crypto from another person.
In cryptography, a brute-force attack consists of an attacker submitting many passwords or passphrases with the hope of eventually guessing correctly. The attacker systematically checks all possible passwords and passphrases until the correct one is found.
The Bitfinex cryptocurrency exchange was hacked in August 2016. [1] 119,756 bitcoin, worth about US$72 million at the time, was stolen.[1]In February 2022, the US government recovered and seized a portion of the stolen bitcoin, then worth US$3.6 billion, [2] by decrypting a file owned by Ilya Lichtenstein (born 1989) that contained addresses and private keys associated with the stolen funds. [3]
Clark is widely regarded as the "mastermind" of the 2020 Twitter account hijacking, [4] [5] an event in which Clark worked with Mason Sheppard and Nima Fazeli to compromise 130 high-profile Twitter accounts to push a cryptocurrency scam involving bitcoin along with seizing "OG" (short for original) usernames to sell on OGUsers.
It took the company six days to notice the hack. [217] The hack currently sits as the largest-ever breach in the cryptocurrency sector by dollar value. [218] It further damaged the value of SLP. [219] On 8 April 2022, Sky Mavis said it expected it would be able to recover some of the funds, but it would take several years. [220]