Security AlertHigh
SilentAir hijacks mobile networks to intercept calls and SMS
Nov 13, 2026 · Summarized by Fundy Tech from 2 sources
The 30-second version
Enea says SilentAir used compromised mobile network equipment to intercept calls and texts, mainly targeting people in Taiwan. The activity has also affected other countries and regions.
Key points
- SilentAir used SS7 and Diameter traffic through hijacked mobile nodes.
- Taiwan was the main target, with attacks from at least six Asian countries.
- Enea said the group may be a state-level actor with low-confidence China links.
- Some 2FA codes were intercepted right after diversion began.
Why it matters
If mobile network infrastructure is compromised, calls and text messages can be monitored without the phone being touched. That can expose one-time codes, private conversations and location data.
Who’s affected: Mobile subscribers, especially in Taiwan
Original reporting
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