AIOS-26-003300 - Apple iOS/iPadOS 26 must not allow backup to remote systems (iCloud Keychain) - iCloud Keychain.

Information

If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information.

SFR ID: FMT_MOF_EXT.1.2 #40

Solution

Install a configuration profile to disable iCloud keychain. This a supervised-only control.

Configuration Profile Key: allowCloudKeychainSync

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Apple_iOS-iPadOS_26_V1R2_STIG.zip