Ensure that all users are uniquely identified and do not allow sharing of user IDs |
By making that users never share their IDs (username and passwords) to access the systems, an organization can establish accountability and individual responsibility for any kind of actions and enable effective audit trail to trace everyone actions and access to cardholder data.
8.1.1: Assign Unique User IDs
All users must be assigned a unique ID before granting them access to cardholder data
8.1.2: Management of User IDs
Control addition, deletion, and modification of user ID, credentials and other identifier objects
8.1.3: Revoke Access for Terminated Employees
Ensure that any terminated users lose their access to corporate systems
8.1.4: Inactive User Accounts
Remove or disable user accounts that have been inactive for over 90 days
8.1.5: Third Party Accounts
Enable third-party vendor accounts only when needed and monitor when in use
8.1.6: Account Lockouts
Limit multiple invalid login attempts by locking out the user ID after 6 attempts
8.1.7: Account Lockout Duration
The lockout duration must be at least 30 minutes or until re-enabled by administrator
8.1.8: Idle Sessions
Require user re-authentication after a session has been idle for more than 15 minutes
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at Microsoft TechNet.