ML-KEM-768 for Messaging: FIPS 203, Hybrid Keys and Limits
What ML-KEM-768 does in a messenger, why a hybrid design also uses P-256, and which security questions FIPS 203 does not answer.
Guide
A READING COLLECTION / 05فارسی ↗
Private messagingChoose with
your eyes open.
Private messenger guides: messaging without a phone number, encrypted chat comparisons, group privacy and practical security checklists.
Choosing a private messenger starts with the questions that matter to you: phone numbers, default encryption, groups, recovery, metadata and the devices you use.
This collection brings those questions together. Read scoped comparisons and practical checklists, then follow claims back to the relevant product documentation and security boundaries.
QUESTIONS TO EXPLORE
Can I message without a phone number?
What should I compare between secure messengers?
Which privacy trade-offs should I ask about?
Explore private messaging
13 STORIESCrypto Agility in Messaging: Why Versioned Protocols Matter
Cryptographic algorithms evolve, so secure messengers need protocols that can be inspected, tested, versioned, and upgraded without hiding important decisions behind vague security claims.
Field note
Beyond the App Store: How Malicious Chrome Extensions Read Messages and Hijack Web Messengers
Discover how rogue browser extensions hijack unencrypted DOM text in web messengers and learn how isolated Web Workers and offline integrity proofs neutralise browser-level threats.
News
Beyond the Envelope: How Encrypted Media Storage Works Without Server Knowledge
Discover how zero-knowledge media storage separates content keys from ciphertext blobs, protecting attachments in an encrypted file transfer messenger without server exposure.
Comparison
Harvest Now, Decrypt Later: What It Means for Private Messaging
A practical explanation of stored ciphertext, future quantum risk, hybrid key establishment, and what post-quantum messaging cannot protect.
Field note
The End of the Password Hash: Why Messengers Demand a Zero Knowledge Password Proof
Traditional password hashes leave credentials vulnerable on servers. Discover how Secure Remote Password (SRP) protocols allow messengers to verify your identity without ever transmitting your password.
Field note
SIM Swap Vulnerabilities in Messaging: How Zero-Knowledge Proofs Stop Telco Hijacking
SIM swap attacks exploit mobile carrier weaknesses to steal account access. Learn how zero-knowledge SRP authentication decouples chat privacy from carrier trust.
News
Hybrid Post-Quantum Ratchet: ML-KEM-768 and P-256 in Daily Chat
Livara's LVR1 protocol pairs classical ECDH P-256 with ML-KEM-768. Discover how hybrid post quantum ratchets secure messaging without impacting mobile battery.
Field note
Encrypted Group Admin Controls Compared: Who Can Add Members, Read History and Control Your Chat?
Compare Livara, Signal, WhatsApp, Telegram, Element and SimpleX by invitations, member removal, old-message access, channels and admin powers—without confusing encryption with group governance.
Comparison
Which Messaging App Collects the Least Personal Data? A Privacy-Label Audit
Signal appears to collect the least personal data among five popular messaging apps when judged by its published privacy disclosures: it requires a phone number for registration but says it does not sell, rent or monetise personal data. Session is the strongest option for people seeking chat apps wi
Comparison
What Happens to Your Private Messages When Your Phone Is Lost or Stolen?
End-to-end encryption protects messages in transit, but a thief holding an unlocked phone may see what you can see. To protect private messages on a stolen phone, you need safeguards before the loss and swift containment afterwards. This guide explains the risks, how to secure encrypted chats after
Field note
Data Breach News This Week: What Leaked, Who Is at Risk, and What to Do Now
One exposed account can unlock your inbox, finances and identity. This week’s data breach news includes an alleged TaxAct backend leak involving 450,000 user accounts, while live trackers continue to flag leaks, ransomware and stolen credentials. Here is the latest leaked data news, who may face the
News
How to Choose a Secure Messaging App: 12 Privacy Questions That Matter
A practical checklist for comparing encrypted chat apps, understanding privacy claims, and choosing a messenger you can trust.
Guide