AIX must enforce a delay of at least 4 seconds between login prompts following a failed login attempt.

Limiting the number of login attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.

From the command prompt, run the following command to check the default "logindelay" value: # lssec -f /etc/security/login.cfg -s default -a logindelay

The above command should yield the following output: default logindelay=4

If the above command displays the "logindelay" value less than "4", this is a finding.

From the command prompt, run the following command to set "logindelay=4" for the default stanza in "/etc/security/login.cfg": # chsec -f /etc/security/login.cfg -s default -a logindelay=4