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Fears that Iran may have activated ‘sleeper cells’ around the world

US law enforcement agencies have received an alert regarding suspected trigger messages of Iranian origin

March 9, 2026 18:08
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A US counterterrorism police officer (Photo by PATRICIA DE MELO MOREIRA/AFP via Getty Images)
1 min read

US intelligence has reportedly intercepted what it suspects are Iranian trigger messages activating “sleeper cells” around the world.

A federal government alert sent to law enforcement agencies cites "preliminary signals analysis" of a transmission "likely of Iranian origin" that was relayed across multiple countries shortly after the death of Ayatollah Ali Khamenei, according to US news site ABC News.

The encrypted communications are believed to have been sent from inside Iran and may serve as "an operational trigger" for "sleeper assets" outside the country.

It's possible the transmissions could "be intended to activate or provide instructions to prepositioned sleeper assets operating outside the originating country," the alert said.

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