Upgrading account authentication security in iOS and iPadOSĪpps that implement an Account Authentication Modification Extension (in the Authentication Services framework) can provide easy, tap-of-a-button upgrades for password-based accounts-namely, they can switch to using Sign in with Apple or an automatic strong password. If the user logs in to a website in Safari using a previously saved password that’s very weak or that’s been compromised by a data leak, they’re shown an alert strongly encouraging them to upgrade to an automatic strong password. Weak, reused, and leaked passwords are either indicated in the list of passwords (macOS) or present in the dedicated Security Recommendations interface (iOS and iPadOS). For more information, see Password Monitoring. Passwords are marked leaked if the Password Monitoring feature can claim they have been present in a data leak. PIN codes are considered weak if they are one of the most common PIN codes, if they are an increasing or decreasing sequence such as “1234” or “8765,” or if they follow a repetition pattern, such as “123123” or “123321.” These patterns are often used to create passwords that satisfy minimum password requirements for services, but are also commonly used by attackers attempting to obtain a password using brute force.īecause many services specifically require a four- or six-digit PIN code, these short passcodes are evaluated with different rules. iOS, iPadOS, and macOS detect common patterns used to create memorable passwords, such as using words found in a dictionary, common character substitutions (such as using “p4ssw0rd” instead of “password”), patterns found on a keyboard (such as “q12we34r” from a QWERTY keyboard), or repeated sequences (such as “123123”). Passwords are marked weak if they may be easily guessed by an attacker. Passwords are marked reused if the same password is seen used for more than one saved password across different domains. If a service is breached and passwords are leaked, attackers may try the same credentials on other services to compromise additional accounts. Using the same password for more than one service may leave those accounts vulnerable to a credential-stuffing attack.
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