End-to-End Encryption (E2EE)
A communication method where only the sender and intended recipient can read the message content — the service provider, network operators, and interceptors cannot decrypt it.
Also known as: E2EE, end-to-end encrypted messaging
Last reviewed: 10 June 2026
End-to-end encryption ensures that messages are encrypted on the sender's device and can only be decrypted by the intended recipient's device. The encryption keys are generated and stored on the endpoints rather than on servers; the service provider in the middle has no mathematical ability to read message content even if compelled or hacked.
E2EE is standard in several widely used messaging platforms and protects against a range of threats: eavesdropping on network connections, server-side breaches, and lawful demands for message content. It does not protect against compromise of the endpoint device itself, screenshots taken by the recipient, or metadata (who communicated with whom and when).
From a consumer-protection perspective, E2EE is important for private conversations but does not protect against social engineering. A scammer communicating via an E2EE channel still benefits from that privacy; victims of romance fraud and investment scams are often contacted via encrypted apps precisely because the operator cannot monitor and flag predatory communications.