Update to Marine Corps Enterprise Network (MCEN) Password Policy

1. PURPOSE. THE PURPOSE OF THIS MARADMIN IS TO UPDATE MARINE 
CORPS PASSWORD POLICY PROMULGATED BY MARADMIN 155/06 FOR ACCOUNT 
LOCKOUTDURATION SUBSEQUENT TO THREE UNSUCCESSFUL LOGON ATTEMPTS IN ACCORDANCE 
WITH REF C.
2. BACKGROUND. REFS A AND B DIRECT THAT AFTER THREE UNSUCCESSFUL LOGON 
ATTEMPTS, THE ACCOUNT LOCKOUT DURATION IS SET TO FOREVER REQUIRING THE 
ACCOUNT TO BE UNLOCKED BY A SYSTEM ADMINISTRATOR. REF C PERMITS THE REQUIREMENT
TO BE CHANGED FROM FOREVER TO 60 MINUTES. 
3. SCOPE. THIS POLICY APPLIES TO ALL USMC COMMANDS.
4. POLICY. EFFECTIVE IMMEDIATELY, MARADMIN 155/06 PARA 4D(5) IS MODIFIED 
AS FOLLOWS: PARA 4D(5). UNSUCCESSFUL LOGON ATTEMPT COUNTER SHALL BE SET TO
3 WITH A COUNTER RESET OF NO LESS THAN 60 MINUTES. THIS ALLOWS NO MORE THAN
TWO UNSUCCESSFUL LOGON ATTEMPTS WITHIN A 60 MINUTE PERIOD. AFTER THE THIRD 
UNSUCCESSFUL LOGON ATTEMPT, THE ACCOUNT LOCKOUT DURATION IS SET TO "60 MINUTES".
5. COMMANDERS WILL ENSURE THE IMPLEMENTATION OF THIS POLICY WITHOUT DELAY 
AND ENSURE THE INCLUSION OF ITS CONTENT WITHIN RESIDENT INFORMATION ASSURANCE
TRAINING.
6. TECHNICAL INQUIRIES SHOULD BE DIRECTED TO THE MCNOSC OPERATIONS CENTER
AT DSN 278-5300, COMM 703-784-5300, OR UNCLASS E-MAIL: SMB USMC MCNOSC 
COMMAND CENTER@MCNOSC.USMC.MIL.