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It's like whispering a secret that only your friend can hear — not even the phone or app knows what you said.

Definition

A method of securing data where only the sender and the intended recipient can read the message — not even the service provider has access.

In plain English It's like whispering a secret that only your friend can hear — not even the phone or app knows what you said.

Why this matters

Why it matters: End-to-End Encryption (E2EE) protects your privacy from hackers, governments, and even the companies that provide your apps.

Example

Example: Signal, WhatsApp, and ProtonMail use E2EE to protect messages from anyone else reading them.