Bitwarden is open source, which means the source code, features, and infrastructure security are vetted and improved by a global community. Bitwarden is regularly audited by reputable third-party security firms as well as independent security researchers. Bitwarden seals your sensitive information with end-to-end AES-256 bit encryption, salted hashing, and PBKDF2 SHA-256. Bitwarden maintains zero knowledge encryption because only you retain the keys to your vault, including the websites you visit, as well as the names of your individual items and folders. Join our community on Reddit or our Community Forums to hear from real users about why they trust Bitwarden.