Signal has been the most high-profile app in the news lately because of the controversy surrounding its use by Defense Secretary Pete Hegseth. Signal is a secure messaging platform known for end-to-end encryption, often used for private communication.

An investigation into Defense Secretary Pete Hegseth's use of the Signal app is complete and its classified findings provided to Capitol Hill, a source says.

Pentagon inspector finds War Secretary Pete Hegseth violated policy by sharing strike details on Signal app, creating operational security risks.

A copy of Acting Inspector General Steven Stebbins’s report about “Signalgate” was sent to Defense Secretary Pete Hegseth on Tuesday. It was also sent to Congress and a redacted

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Some strategies on how to best use Signal to keep your messaging secure. Some strategies on how to best use Signal to keep your messaging secure. is a senior science reporter covering energy and the environment with more than a decade of experience.

Defense Secretary Pete Hegseth is facing scrutiny after a new watchdog report found his use of the Signal app earlier this year could have harmed troops. The findings come as military officials briefed lawmakers about the U.