Password Manager

A password manager is an application that generates long, random passwords, stores them in an encrypted vault and fills them in automatically when the user signs in to websites and apps. The vault is unlocked with a single master password, often combined with two-factor authentication or biometrics, so users need to remember only one strong secret instead of reusing weak ones. Reuse is dangerous because a breach at one site lets criminals try the same login elsewhere. Managers can be built into browsers and phones or offered as separate services, and good ones use end-to-end encryption so the provider cannot read the vault. They also help resist phishing, because autofill will not trigger on a look-alike domain. Risks include a weak master password, malware on the device and breaches at the provider. Security guides generally advise against storing a crypto seed phrase in any online vault.