POLITICO Tech Why you shouldn’t share ‘war plans’ on Signal
Mar 27, 2025
Graham Brookie, vice president of technology programs at the Atlantic Council and former National Security Council advisor, dives into the risks of sharing sensitive information on commercial apps like Signal. He discusses the blurred lines of what constitutes classified information and warns against the inherent vulnerabilities of using personal messaging for government communications. Brookie emphasizes the critical need for secure channels to protect national security, especially following the recent leak of military operations.
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Personal Experience with Secure Communications
- Graham Brookie, previously a National Security Council advisor, expressed shock at the SignalGate incident.
- He highlighted the contrast between secure government communication systems and the casual use of commercial apps like Signal for sensitive discussions.
Signal's Encryption vs. Government Standards
- While Signal offers strong encryption for everyday users, it's insufficient for government officials handling classified information.
- Government systems employ higher levels of encryption and physical security measures beyond what commercial apps provide.
Security Risks of Using Signal
- Government communication systems involve strict protocols, like secure physical locations and dedicated devices.
- Using Signal on personal devices in ordinary settings exposes sensitive information to higher risks, particularly from foreign surveillance.