What does Class C security mean for entry doors?

Class C is a designation used in the context of door security that indicates the level of resistance to burglary. Door security classes are usually designated by the letters A, B, C, and so on, where class C is one of the higher classes, denoting a very high level of security. Doors and door accessories with Class C security features are designed and manufactured to withstand break-in attempts by advanced burglars, providing additional protection and peace of mind for users.