About 1Password and your privacy
Your private information is yours, and we don’t sell it or give it away. Wherever possible, we don’t even collect it.
About the 1Password security model
1Password is secure by design. Learn how 1Password encrypts your data, protects your privacy, and safeguards your information.
How to keep your 1Password account secure
Learn how to use 1Password in a way that will protect your information and ensure that you can always access your account.
Master Password and Secret Key
About your Secret Key
Your Secret Key keeps your 1Password account safe by adding another level of security on top of your Master Password.
How to choose a good Master Password
You can choose a Master Password that’s strong, memorable, and hard for others to guess.
Should I use special characters in my Master Password?
For the best compatibility, use only standard characters in your Master Password.
1Password data formats
About the OPVault format
Learn how the OPVault format improves upon the design of the Agile Keychain format.
Agile Keychain design
Learn about the design of the Agile Keychain format, previously used by default in 1Password.
Learn about the design of the OPVault format, used by default when syncing with iCloud or Dropbox.
About 1Password X security
Learn how 1Password X protects your data when you use it in your browser.
About 1Password security on Apple Watch
Learn how to protect your data when you use 1Password on your Apple Watch.
About Face ID security in 1Password for iOS
Learn how 1Password protects your data when you use Face ID on your iPhone X.
About Fingerprint Unlock security in 1Password for Android
Learn how 1Password protects your data when you use Fingerprint Unlock.
About Spotlight security in 1Password on iPhone, iPad, and iPod touch
Learn how 1Password protects your data when you enable Spotlight to find 1Password items on your iOS device.
About Touch ID security in 1Password for Mac
Learn how to protect your data when you use Touch ID on your Mac.
About Touch ID security in 1Password for iOS
Learn how 1Password protects your data when you use Touch ID on your iPhone or iPad.
How 1Password protects your data when you use a sync service
Learn how 1Password secures your information whether it’s synced with a 1Password account, Dropbox, iCloud, or the WLAN server.
How 1Password protects your privacy when downloading icons
1Password doesn’t collect any information when it downloads icons for your websites and software licenses.
Authentication and encryption in the 1Password security model
1Password uses strong, end-to-end encryption. Authentication is used to provide our hosted services but not relied on for securing your data.
How PBKDF2 strengthens your Master Password
Learn how 1Password uses Password-Based Key Derivation Function 2 to make it harder for someone to repeatedly guess your Master Password.
How vault permissions are enforced in 1Password Teams
Vault permissions are enforced in three ways. From strongest to weakest: cryptography, server policy, and client policy.
Security audits of 1Password
1Password hosted services have been reviewed by multiple independent security firms.