A secure messenger protects communication content better than ordinary SMS or open chat. EncryptionTurning data into a form that cannot be understood without the right key. More quality matters, but so do metadataData about communication or a file, not necessarily the content itself. For example time, sender, re... More handling, backups, linked devices, and phone security.
Why it matters: “Secure messenger” does not mean the user cannot make a mistake.
