That demand is shocking in sweep, and it includes: “complete user profile, history of changes to user profile from account inception, complete user preferences, complete user security settings and history (including confirmed devices and account activity), complete user payment methods, and any other information related to the funding sources for the account/wallet/vault, regardless of date.” And every single transaction.
The demand is not limited to owners of large amounts of Bitcoin or to those who have transacted in large amounts. Everything about everyone.
Equally shocking is the weak foundation for making this demand. In a declaration submitted to the court, an IRS agent recounts having learned of tax evasion on the part of one Bitcoin user and two companies. On this basis, he and the IRS claim “a reasonable basis for believing” that all U.S. Coinbase users “may fail or may have failed to comply” with the internal revenue laws.
The IRS’s effort to strip away the privacy of all Coinbase users is more broad than the government’s effort in recent cases dealing with cell site location information. In the CSLI cases, the government has sought data about particular suspects, using a standard below the probable cause standard required by the Fourth Amendment (“specific and articulable facts showing that there are reasonable grounds to believe”).