Someone asked AI to summarize the Bitcoin Whitepaper! Beautifully explained, Worth a share!🧡 😇 #bitcoin #whitepaper #tech #banks #privacy #nostr

📍 Your Phone # Leaks Your Location on WhatsApp/Signal Sending messages? Delivery times expose your exact spot—80%+ accuracy even within the same city. Combine with "Careless Whisper" (❤️ reactions track screen/activity) = complete location + behavior map. The Attack: Attacker sends messages → measures response delays RTT (round-trip timing) fingerprints your network location Works on Signal, Threema, WhatsApp—all have E2EE but metadata leaks

arXiv.org

Careless Whisper: Exploiting Silent Delivery Receipts to Monitor Users on Mobile Instant Messengers

With over 3 billion users globally, mobile instant messaging apps have become indispensable for both personal and professional communication. Besid...

The Fix: Providers: Add random delays (seconds). Users: Disable read receipts, use burner numbers, switch to usernames when possible. Research: NDSS 2023 paper on delivery timing attacks 📄.pdf #privacy #security #bitcoin #surveillance #whatsapp #signal #cryptography #nostr #freedom #decentralization #anonymity #infosec #cybersecurity #privacymatters #foss #censorship #zeroknowledge