A UK National Crime Agency (NCA) report estimates that illegal cryptocurrency transactions in the UK amount to $5.1 billion annually. The report details how international networks use crypto for money laundering and link criminal proceeds to global cybercrime. The growing use of crypto for laundering both digital and non-digital crime proceeds, including through malware and ransomware, underscores its increasing role in criminal activities. The NCA highlights the escalating threat and the need for enhanced measures to address these financial crimes.