Novell iPrint Appliance
The iPrint Appliance has the ability to import users from a source directory. When users on that source directory has Intruder Lockout configured, one failed login attempt will results in the user being disabled on that source directory.
The iPrint development team has coded a fix. To have that fix emailed to you (3KB file), send an email to firstname.lastname@example.org with the subject of "Appliance consumes Intruder Lockout logins".