For more than 25 years, a technology used for critical data and voice radio communications around the world has been shrouded in secrecy to prevent anyone from closely scrutinizing its security ...

A radio communications protocol used by emergency services worldwide harbors several critical vulnerabilities that could allow adversaries to spy on or manipulate the transmissions, researchers found.

The supposedly secure terrestrial trunked radio (Tetra) technology used by the emergency services – which have been a sticking point in the long-running and deeply troubled transition to the new ...

Terrestrial Trunked Radio, or TETRA, the radio protocol used by law enforcement and critical infrastructure in more than 100 countries, has severe vulnerabilities in its encryption layers. Research ...

BLACK HAT USA -- Las Vegas – Tuesday, Aug. 8 — After vulnerabilities were found in the TETRA communications protocol that powers industrial control systems globally, researchers have revealed new ...