U.S. authorities could seize approximately $1 billion in Iran-linked cryptocurrency during the week, Treasury Secretary Scott Bessent said at Newsmax's NPolicy Summit in Washington on Oct. 8. Bessent said officials knew where the assets were held and were working to isolate them, while describing the prospective action as part of an "absolute isolation campaign" involving financial restrictions, maritime controls and travel limits. The potential seizure has not been confirmed as completed, and Bessent did not say whether it would add to previously announced enforcement actions. The effort follows Tether's reported freezes of about $550 million in Iran-linked USDT during 2026 and U.S. civil forfeiture proceedings involving $61.2 million in USDT. Treasury also sanctioned 17 vessels accused of carrying Iranian petroleum products on Oct. 8, while blockchain analytics firms have reported billions of dollars in activity involving Iranian entities, exchanges and addresses linked to the Islamic Revolutionary Guard Corps.