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Iran May Have Activated 'Sleeper Cells' After Khamenei's Death: ABC News

Published March 10, 2026, 12:16
Iran May Have Activated 'Sleeper Cells' After Khamenei's Death: ABC News

US security agencies have warned of the possibility that Iran may have activated 'sleeper cells' in various countries following the assassination of Ali Khamenei. The warning is based on encrypted communications detected and believed to function as an 'operational activation signal' for secret agents or terrorist cells. The message was detected shortly after Khamenei's death and appears to be addressed to 'hidden recipients' with the appropriate decryption key. Despite the concern, there is currently no specific threat, however, US authorities are calling for increased monitoring of suspicious radio frequencies. 'Sleeper cells' consist of agents living in other countries without attracting attention until they receive activation orders.