π Your Phone # Leaks Your Location on WhatsApp/Signal
Sending messages? Delivery times expose your exact spotβ80%+ accuracy even within the same city. Combine with "Careless Whisper" (β€οΈ reactions track screen/activity) = complete location + behavior map.
The Attack:
Attacker sends messages β measures response delays
RTT (round-trip timing) fingerprints your network location
Works on Signal, Threema, WhatsAppβall have E2EE but metadata leaks