According to a report published by the UK's National Crime Agency (NCA), it is estimated that illegal crypto transactions linked to the UK amount to as much as $5.10 billion annually. The report states that the international network of controllers uses a variety of methods to provide money laundering services to criminals. This links the proceeds of crime generated in the UK to transnational cybercrime, affecting victims around the world. The NCA said crypto assets are increasingly being used to launder the proceeds of non-digital crime such as cash and acquired through escalating cybercrime, including through malicious software and ransomware.