Most countries lack “travel rule” laws that could help prevent the illicit use of cryptocurrency by criminals and terrorists, a global anti-money-laundering watchdog said on 30 June.

The rules would require companies and service providers to share information about senders and recipients in cryptocurrency transactions. Only about 30% of jurisdictions surveyed by the Financial Action Task Force said they have passed such legislation, and only a small subset of the group has started enforcement of the laws.