"Researchers Find 'Backdoor' in Encrypted Police and Military Radios"

The TETRA standard is used globally in radios. According to security researchers, multiple vulnerabilities have been discovered in the fundamental cryptography and its implementation, including issues that enable the decryption of traffic. A group of cybersecurity researchers has discovered what they believe to be an intentional backdoor in the encrypted radios used by police, military, and critical infrastructure entities. They note that the backdoor may have existed for decades, potentially exposing a wealth of confidential information transmitted across them. While the researchers refer to their discovery as a backdoor, the organization responsible for maintaining the standard disputes this specific term, stating that the standard was designed for export controls that determine the encryption's strength. However, the result is radios with traffic that can be decrypted in under a minute using consumer hardware such as a laptop. This article continues to discuss the TETRA vulnerabilities.

Motherboard reports "Researchers Find 'Backdoor' in Encrypted Police and Military Radios"