Encryption
Posts about Encryption.
The Backup Blind Spot: Why "End-to-End Encrypted" Chat Apps Still Leak Your Messages Through Cloud Backups
Most 'end-to-end encrypted' chat apps still expose your messages through unencrypted cloud backups. Here's the blind spot — and how SimXmil avoids it.
Perfect Forward Secrecy Explained: Why a Stolen Key Still Can't Unlock Yesterday's Messages
Forward secrecy is the reason a single compromised key doesn't hand over your whole message history. Here's how it actually works and why SimXmil rotates keys per message.
Safety Numbers Explained: How to Actually Verify Who You're Talking To
Encryption is only as trustworthy as the keys behind it. Here's what safety numbers and key verification actually check, why it matters, and how to do it in SimXmil.
End-to-End Encryption Explained Simply
A clear, non-hype guide to end-to-end encryption: what it protects, what it does not, and how SimXmil applies on-device encryption to chat and calls.
Double Ratchet, Explained: How SimXmil Gives Every Message Its Own Key
A plain-language (and slightly mathematical) walkthrough of the Double Ratchet algorithm SimXmil uses so that no single leaked key exposes more than one message.