Cybercrime is a crime committed by/against computers and/or a network. Computers and networks can be tools or targets of an attacker. Cryptocurrency-related cybercrimes and those oriented towards Bitcoin are now an inseparable part of the industry. Cryptocurrency enables cybercrimes such as hacking, phishing, and various scam schemes. There have been many notable cryptocurrency thefts, with the most recent cases being the Coincheck hack (with $400 million in NEM tokens stolen in 2018) and NiceHash (with $60 million stolen). They can also be carried out within the blockchain, such as the infamous DAO event, in which an amount of Ethereum valued at $50 million was taken by the hacker, leading to a hard fork of the entire platform. Different types of wallet services for altcoins are one of the main targets of cybercrime, as a system failure gives the hacker access to multiple accounts.
