WhatsApp, Signal, Telegram: Which One Is Truly Secure?

Short summary

This technical analysis compares WhatsApp, Signal, and Telegram on security and privacy, arguing that end-to-end encryption (E2EE) alone doesn't guarantee privacy. While E2EE protects message content, metadata—who communicates with whom, timing, frequency, and patterns—poses equal risk and is collected by all three apps. WhatsApp uses Signal Protocol encryption but enables Meta's extensive metadata harvesting for advertising; Telegram's E2EE activates only in Secret Chats, not by default.

• •E2EE protects message content but not metadata (who, when, frequency patterns)
• •WhatsApp has strong encryption but enables Meta's metadata collection for advertising
• •Telegram requires manually enabling E2EE in Secret Chats, not default configuration

Generated with AI, which can make mistakes.