Reputable password managers use zero-knowledge encryption — meaning even the company itself cannot read your stored passwords. Understanding this architecture helps freelancers evaluate trust claims.
Zero-Knowledge Architecture
In a zero-knowledge system, your master password never leaves your device in readable form. All encryption and decryption happens locally — the password manager’s servers only ever store unreadable, encrypted data.
Encryption Standards Used
- AES-256 — the industry standard, used by 1Password and Bitwarden
- XChaCha20 — a newer, faster standard used by NordPass
- PBKDF2 or Argon2 for key derivation, slowing brute-force attempts
What to Check Before Trusting a Provider
Look for explicit zero-knowledge claims backed by independent audits, open-source code where possible, and clear documentation of which encryption standard is used — vague marketing language without specifics is a warning sign.
FAQ
What happens if I forget my master password?
With true zero-knowledge architecture, the provider cannot recover it — this is the necessary tradeoff for genuine security.
Is AES-256 still secure in 2026?
Yes, AES-256 remains uncracked by any known practical attack and is expected to remain secure for the foreseeable future.
Does open-source code make a password manager safer?
It allows independent verification, which increases trust, though closed-source managers can still be secure if properly audited.
Verdict
Understanding zero-knowledge encryption helps freelancers make informed choices rather than relying on marketing claims alone. Compare secure password managers →