Tag: signaling attacks

State Actor SilentAir Exploits Telcos to Intercept Taiwanese Calls

Meet SilentAir, a stealthy state-level actor that's been secretly intercepting calls from Taiwanese subscribers, including politicians and government VIPs, using hijacked equipment from mobile operators across Asia. This highly sophisticated threat actor has been quietly lurking in the shadows since early 2025, with interception accounting for a staggering 18.30% of its activity.