A bulletin from the National Terrorism Advisory System warns of a “heightened threat environment in the United States” following the U.S. military strikes on Iran’s nuclear sites. The bulletin, obtained by CBS News and dated Sunday morning, June 22, does not note any current specific threats, but warns that “low level cyber attacks against US networks by pro-Iranian hacktivists are likely, and cyber actors affiliated with the Iranian government may conduct attacks against US networks.”
Terrorism advisory bulletin warns of “heightened threat environment” in U.S. after strikes on Iran
By Jennifer Jacobs & Nicole Sganga, CBS News - June 22, 2025
https://www.cbsnews.com/news/terrorism-advisory-bulletin-threats-us-iran-strikes/
The bulletin, which has not yet been officially shared with the public by the Department of Homeland Security, is the type of comprehensive threat assessment designed to communicate information directly to the public about threats and about “resources for how to stay safe during the heightened threat environment.”
Multiple sources tell CBS News that intelligence analysts began crafting this document earlier this month. It’s gone through many iterations, with plans to publish following any escalation in the conflict overseas or intervention by the United States. When the advisory is finalized, it will be made public at this government website: https://www.dhs.gov/national-terrorism-advisory-system