Blender.io

Blender.io was a cryptocurrency mixer that was established in 2017. In 2022, it was sanctioned by the Office of [Foreign Assets Control] of the U.S. [Department of the Treasury] for allegedly aiding the Lazarus Group, a hacking group associated with the government of North Korea. The Treasury Department stated that this was the first sanction that they had imposed on a cryptocurrency mixer.
The US Treasury Department's Office of Foreign Assets Control said Blender.io helped transmit over $500 million in bitcoin since 2017, when it had been created. The Treasury also said it had been involved in laundering $20.5 million in proceeds from the Lazarus Group's Axie Infinity cryptocurrency heist. According to a 2025 press release by the US Justice Department, Blender.io operated until approximately 2022.
According to the Office of Foreign Assets Control, Sinbad.io was a successor to Blender.io. Sinbad.io was sanctioned on November 29, 2023, also for being a "key money-laundering tool" of the Lazarus Group, and Sinbad.io servers were seized in the Netherlands and Finland.