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.

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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