Security Levels determine what kind and how much access the caller has in the BBS system. This determines how many files _ and from which areas they can download or upload. It also determines which conferences callers can join and how much on line time they have each call. Most Sysops have a system for determining what a callers security level will be at any given time. In some systems you can verify what your security level is by selecting from the Main Menu the letter ( Y ) for your user settings.