Bitwarden scores 5/5 for encryption, 5/5 for privacy, and 5/5 for track record. Overall safety score: 5/5.

What are the privacy concerns with Bitwarden?

Bitwarden security review covering open-source encryption, security audits, and why it leads password managers.

Has Bitwarden been hacked before?

See our detailed analysis of Bitwarden's past security incidents and track record at The Opt-Out Project.

Is Bitwarden Safe? Security Review

Name: Is Bitwarden Safe? Security Review
Item: Bitwarden
Rating: 5
Author: The Opt-Out Project

Category: Security & VPN Company: Bitwarden, Inc. Reviewed February 10, 2026

5/5

Overall Safety Score

★ ★ ★ ★ ★

Verdict: Bitwarden is the most recommended password manager by security professionals. Its open-source code, independent audits, self-hosting option, and clean security track record make it the best choice for most users.

Bitwarden is an open-source password manager that has become the top recommendation from security professionals. Its transparent codebase, strong encryption, and affordable pricing make it the gold standard for password management.

Security Ratings Breakdown

Category	Score	Rating
Encryption	5/5
Privacy	5/5
Track Record	5/5

Security Features

AES-256 encryption with PBKDF2 or Argon2 key derivation
Fully open-source (client and server)
Zero-knowledge encryption
Independent security audits (Cure53, Insight Risk Consulting)
Self-hosting option for maximum control
Two-factor authentication (TOTP, FIDO2, email)
Emergency access and account recovery

Privacy Concerns

Cloud-hosted version stores encrypted vaults on Bitwarden servers (mitigated by zero-knowledge encryption)
Account creation requires email
Minimal concerns overall for a tool in this category

Past Security Incidents

No major data breaches as of 2025
2023 researchers identified a potential autofill vulnerability in iframes (common to many password managers, quickly addressed)

How to Stay Safe Using Bitwarden

Use a very strong master password (16+ characters)
Enable two-factor authentication (preferably FIDO2 key)
Use Argon2 for key derivation if available
Consider self-hosting for maximum control
Regularly audit your vault for weak or reused passwords

Safer Alternatives

1Password (excellent UX, strong security)
KeePass (offline, fully local)

🛡️

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Last updated: February 10, 2026