New Delhi, June 23 -- The US Department of Homeland Security (DHS) issued a National Terrorism Advisory System (NTAS) bulletin on Sunday (June 22) warning of a heightened threat environment within the United States due to the ongoing Iran-Israel conflict and increasing anti-US sentiment in the region.

The bulletin, effective through September 22, 2025, highlights a growing concern over both cyber and physical attacks, particularly from Iranian-linked actors and ideologically motivated extremists operating domestically.

According to DHS, pro-Iranian hacktivists and cyber actors affiliated with the Iranian government are likely to increase low-level cyber attacks targeting vulnerable US networks and infrastructure. These efforts are seen ...