In Microsoft Windows 2000 and other operating systems, a count of the number of invalid logon attempts allowed before a user is locked out.(Ref: Dyson, Dictionary of Networking)

Occurs when a single sign-on user submits an account and password combination from any number of workstations more times than is permitted by Oracle Internet Directory. The default lockout period is 24 hours.

A Windows security feature that locks a user account if a number of failed logon attempts occur within a specified amount of time, based on security policy lockout settings. Locked accounts cannot log on.