U.S. Alerts on Intercepted Signal That May Activate Iranian Sleeper Cells

A federal alert says U.S. intelligence intercepted an encrypted broadcast that may be a 'go' signal for covert operatives after the Feb. 28 death of Iran's supreme leader.

Overview

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1.

A federal alert sent to law enforcement said U.S. intelligence intercepted an encrypted transmission believed to be an "operational trigger" to activate sleeper assets operating abroad.

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The alert said the message appeared after the death of Iranian Supreme Leader Ali Khamenei on Feb. 28 and preliminary signals analysis showed it was destined for clandestine recipients possessing an encryption key.

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The alert called for increased monitoring of suspicious radio frequencies, and the FBI and the Department of Homeland Security said their counterterrorism teams were on heightened alert.

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The transmission was relayed across multiple continents, and investigators are probing U.S. incidents including an Austin bar shooting on March 1 that killed roughly two to three people and wounded 14, and an IED attack outside New York's mayoral residence.

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Officials said there is currently no specific, credible threat to the public identified, but the alert urged heightened situational awareness and ongoing investigations into possible retaliatory attacks.

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U.S. intelligence intercepted an encrypted broadcast believed to be an 'operational trigger' or 'go' signal for Iranian sleeper cells abroad, sent after Supreme Leader Ali Khamenei's death on February 28.

Investigators are probing an Austin bar shooting on March 1 that killed 2-3 people and wounded 14, and an IED attack outside New York's mayoral residence.

The FBI and DHS have counterterrorism teams on heightened alert, urging increased monitoring of suspicious radio frequencies and heightened situational awareness, with no specific credible threat identified.

The encrypted transmission appeared after Ali Khamenei's death on February 28, potentially serving as a trigger for activating covert operatives in retaliation.

Experts warn college campuses could be ground zero due to anti-Israel protests involving foreign students, and potential targets include community centers or policy officials.