US Intercepts Iranian Signal: Sleeper Cells May Activate After Khamenei's Death

• US government issued an alert on intercepted encrypted Iranian communications.
• Signals may serve as an "operational trigger" for sleeper cells outside Iran after Ayatollah Ali Khamenei's death in US-Israeli strikes on February 28.
• The transmission is similar to messages for "covert operatives or sleeper cells" without internet use, intended to activate assets.
• Qatar recently arrested two cells linked to Iran’s Revolutionary Guard Corps (IRGC) for spying and sabotage operations.
• Germany warned of Iran-linked sleeper cells in Europe after Grand Ayatollah Nasser Makarem Shirazi issued a fatwa for holy war.