DHS issues heightened threat alert for all Americans after U.S. attack on Iran

"The ongoing Iran conflict is causing a heightened threat environment in the United States. 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," read the bulletin.

Published: June 22, 2025 2:30pm

Updated: June 22, 2025 3:34pm

The Homeland Security Department issued a heightened threat alert for all Americans after the U.S. attack on Iran.

"The ongoing Iran conflict is causing a heightened threat environment in the United States. "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," read the bulletin.

"Iran also has a long-standing commitment to target US Government officials it views as responsible for the death of an Iranian military commander killed in January 2020," it also said. 

According to DHS, the "likelihood of violent extremists in the Homeland independently mobilizing to violence in response to the conflict would likely increase if Iranian leadership issued a religious ruling calling for retaliatory violence against targets in the Homeland."

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