As an administrator you can set the number of consecutive logon attempts, using
an incorrect password, before locking the user account. After the number
of attempts you specify is reached, the next attempt locks
the user account from making any further attempts.
To set the number of incorrect password attempts:
Click Users/Groups in the Administration window.
In the Number of incorrect password attempts field, enter a
value from 1 to 99. The value 0 allows an unlimited number of attempts.