A classified probe has revealed that the US defence secretary used the encrypted Signal app to discuss potential strikes on Yemen, raising serious concerns that the practice may have endangered American troops. The findings have triggered fresh scrutiny over communication protocols at the highest levels of national security and the risks associated with unofficial channels.
According to officials familiar with the inquiry, sensitive operational details were exchanged on the platform, bypassing established safeguards designed to prevent intelligence leaks and foreign interception. Investigators warned that such lapses could compromise troop positions, response timelines and mission confidentiality.
The revelation has intensified pressure on the Pentagon to enforce tighter digital security rules. Lawmakers have demanded clarity on how widely encrypted apps are being used within defence circles, amid fears that the incident may reflect a broader pattern of informal communication practices.
While the Pentagon has not confirmed specifics of the probe, statements indicate that corrective measures and revised guidelines are being considered to prevent any repeat of the security breach.
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