U.S. Treasury Imposes Sanctions on Alleged ISIS Cybersecurity Experts

**Executive summary:** The U.S. Treasury sanctioned Mu’min Al‑Mawji Mahmud Salim (aka “Taqni al‑Mujahedeen”) and Sarah Jamal Muhammad Al‑Sayyid and the FBI offered a $20,000 reward, alleging they operated the Electronic Horizons Foundation (EHF), a platform that provided encryption/anonymity training, technical infrastructure, and cryptocurrency fundraising guidance to ISIS supporters; the sanctions freeze U.S. assets and bar U.S. persons from transacting with them to disrupt ISIS’s online and financial operations.