AIOS-01-080005 - Apple iOS must not allow more than 10 consecutive failed authentication attempts.

Information

The more attempts an adversary has to guess a password, the more likely the adversary will enter the correct password and gain access to resources on the device. Setting a limit on the number of attempts mitigates this risk. Setting the limit at 10 gives authorized users the ability to make a few mistakes when entering the password but still provides adequate protection against dictionary or brute force attacks on the password.

Solution

Install a configuration profile to allow only 10 or fewer consecutive failed authentication attempts.

See Also

http://iasecontent.disa.mil/stigs/zip/U_Apple_iOS_10_V1R3_STIG.zip