Security clearance holders all go through an indoctrination briefingthat includes proper handling and storage of classified or protectedinformation. They also get an annual refresher training. Unfortunately,some people find it difficult remembering information like safecombinations and personal identification numbers (PIN) for access toclassified IT networks. A defense contractor recently had hisclearance

As many on this site have said for security clearance applicants, it is better to tell all then try to hide stuff and hope no one finds out. Many times, the information you are trying to hide can be mitigated, but the fact that you lied about it can’t. That