Abraxas shut suddenly eight years ago, locking user funds on the website in what was described as an “exit scam.”

The funds were left untouched until this week, when the wallet owner consolidated them before transferring the full amount to a bitcoin mixer.

A mixer is a tool that jumbles up bitcoin transactions across a period of time by splitting the coins across various wallets. The U.S. treasury was looking to label coin mixers last week as a “primary money laundering concern.”