Cybersecurity glossary
What is end-to-end encryption?
Also known as: E2EE
Definition
End-to-end encryption (E2EE) means data is encrypted on the sender’s device and can only be decrypted on the recipient’s device, so the service in between cannot read it.
Why it matters
E2EE protects against interception and against breaches of the provider’s servers. It does not protect messages on a compromised or unlocked device, or backups that are not themselves end-to-end encrypted.
Common questions about end-to-end encryption
See also
Sources
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