A Tennessee man has pleaded guilty to hacking the U.S. Supreme Court’s electronic filing system and breaching accounts at the AmeriCorps U.S. federal agency and the Department of Veterans Affairs.

Federal prosecutors said that 24-year-old Nicholas Moore, of Springfield, Tennessee, had accessed the Supreme Court’s restricted electronic filing system at least 25 times between August and October 2023 using stolen credentials.

Additionally, he sometimes logged into the Supreme Court’s systems multiple times per day using the same compromised credentials.