The CA-TSS PWHIST Control Option must be set to 10 or greater.

Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.

From the ISPF Command Shell enter: TSS MODIFY STATUS

If the PWHIST Control Option value is not set to PWHIST(10) or greater, this is a finding.

Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the following control option setting as specified and proceed with the change.

PWHIST(10) or greater