Encryption made for police and military radios may be easily cracked

image via Ars Technica

August 9, 2025, 11:18 AM

• •Researchers found vulnerabilities in end-to-end encryption solutions used in radios, potentially allowing eavesdropping.
• •The vulnerabilities involve key reduction and potential message manipulation.
• •The issue affects radios used by law enforcement, military, and intelligence agencies.
• •Transparency about the weaknesses is lacking, raising concerns about user awareness.

Researchers have discovered vulnerabilities in end-to-end encryption used in radios, potentially allowing attackers to listen in on sensitive communications. The flaws, related to key reduction, could impact law enforcement, military, and intelligence agencies globally. The end-to-end encryption is commonly used in TETRA-based radios. Lack of transparency about the weaknesses raises concerns about user awareness and the true level of security.

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