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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]
The Bitfinex cryptocurrency exchange was hacked in August 2016. [1] 119,756 bitcoins, 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]
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 $23.5 million in cryptocurrency stolen. [20] [21]
The DAO was a digital decentralized autonomous organization [5] and a form of investor-directed venture capital fund. [6] After launching in April 2016 via a token sale, it became one of the largest crowdfunding campaigns in history, [6] but it ceased activity after much of its funds - in the form of US$ exchanged for "Ether-crypto coins" - were taken in a hack in June 2016.
In October 2021, Valve Corporation banned blockchain games, including those using cryptocurrency and NFTs, from being hosted on its Steam digital storefront service, which is widely used for personal computer gaming, claiming that this was an extension of their policy banning games that offered in-game items with real-world value.
GameOver ZeuS (GOZ), also known as peer-to-peer (P2P) ZeuS, ZeuS3, and GoZeus, is a Trojan horse developed by Russian cybercriminal Evgeniy Bogachev. Created in 2011 as a successor to Jabber Zeus, another project of Bogachev's, the malware is notorious for its usage in bank fraud resulting in damages of approximately $100 million and being the main vehicle through which the CryptoLocker ...
CryptoLocker typically propagated as an attachment to a seemingly innocuous email message, which appears to have been sent by a legitimate company. [5] A ZIP file attached to an email message contains an executable file with the filename and the icon disguised as a PDF file, taking advantage of Windows' default behaviour of hiding the extension from file names to disguise the real .EXE extension.
Adaptive-chosen-ciphertext attacks were perhaps considered to be a theoretical concern, but not to have been be manifested in practice, until 1998, when Daniel Bleichenbacher (then of Bell Laboratories) demonstrated a practical attack against systems using RSA encryption in concert with the PKCS#1 v1.5 encoding function, including a version of the Secure Sockets Layer (SSL) protocol used by ...