HighEspionage / nation-stateActive
State-level actor SilentAir uses hacked Asian telco networks to intercept Taiwanese subscribers' calls, texts and 2FA codes
Telecom security firm Enea disclosed on November 11 a new state-level actor it calls SilentAir, tracked since early 2025, which launches signalling attacks from compromised SS7/Diameter network elements in operators in at least six Asian countries, primarily targeting Taiwanese mobile subscribers and also hitting a dozen more countries and territories .