Blackboard can be configured to automatically block user accounts that attempt to authenticate multiple times in a short period to prevent brute force attacks. This works if your accounts use Blackboard's internal authentication.
To configure this feature, go to Admin Panel > Security > Account Lock Settings.
Enable the lock and set the parameters.
- Enter the maximum number of failed attempts allowed before locking.
- Decide the period in seconds during which these attempts must occur.
- Add the number of minutes the account will remain locked.
- Decide whether users will be unlocked upon resetting the password or not.
Example: A user who makes 5 failed login attempts in 5 minutes (300 seconds) will be locked for 6 hours.
The administrator can always unlock locked accounts by searching for the user in Admin Panel > Users > Users and forcing the unlock from the affected user's contextual menu.
If the block you want to apply to a user is for a prolonged period and does not depend on failed attempts (for example, the student has withdrawn or is pending payment of fees), you can mark them as Unavailable, reverting their status to Available when access is allowed again. This action is performed from Admin Panel > Users > Users, searching for the user to block and clicking Mark unavailable in the contextual menu.
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