The Internal Revenue Service's Criminal Investigation unit issued a fraud alert Thursday warning about fraudsters who are targeting cryptocurrency holders with convincing fake IRS letters directing recipients to register for a nonexistent "Digital Asset Compliance Portal." Processing ContentIRS-CI noted that the letters do not come from the IRS, and the IRS doesn't operate a Digital Asset Compliance Portal. Victims receive what appears to be an official IRS letter claiming they need to enroll in a "Digital Asset Compliance Portal" before a deadline. The site may ask for personal information, cryptocurrency wallet information, exchange account credentials, or other sensitive data that criminals can use to steal identities or digital assets. IRS-CI noted that fraudsters increasingly use convincing websites, official-looking letters and urgent deadlines to trick victims.