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How WhatsApp messages and contacts can be intercepted by Intelligence Services

• tonylemesmer 10y ago
  Can old messages be retrieved once a new key exchange has taken place? Or are the old messages stored only on the device?
  • owebm 10y ago
    On WhatsApp: No, messages are only delivered once. On Telegram: Yes, you can read all history of "normal" chats.
• brudgers 10y ago
  Title: Messaging apps and SMS: How "secure" platforms rely on insecure authentication
• senectus1 10y ago
  Isn't WhatsApp "security" based on "Signals's" platform? So presumably Signal has this same issue.