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Cryptocurrency and crime describe notable examples of cybercrime related to theft (or the otherwise illegal acquisition) of cryptocurrencies and some methods or security vulnerabilities commonly exploited. Cryptojacking is a form of cybercrime specific to cryptocurrencies used on websites to hijack a victim's resources and use them for hashing and mining cryptocurrency.
According to blockchain analysis company Chainalysis, around US$2.5 billion was laundered through Bitcoin between 2009 and 2018, and the fraction of cryptocurrency transactions linked to illicit activities has been on the rise since early 2019. In 2021, 0.15% of known cryptocurrency transactions conducted were involved in illicit activities like cybercrime, money laundering and terrorism financing, representing a total of $14 billion. The FBI estimated that crypto fraud costs American investors $4.8 billion in 2023.