globally banned?

I just tried coming back to gmod today and it said “globally banned for cheating (in_bypass)”. What does it mean by cheating and is there a way to get this removed?

If you cheated,Like used a hack client you are permanently banned from garry’s mod. Garry banned 1,500 cheaters earlier. If you are sure you didn’t cheat contact garry. Other than that hteres no way to get this removed.

Simply put you were caught cheating/hacking/bypassing in garrys mod and as such result you were globally banned.

Some interesting bans

http://chessnut.info/bans/index.php?p=banlist&searchText=STEAM_0%3A0%3A32102185&Submit= <-- Chessnuts Anti Cheat caught you.
http://sb.joinsg.net/index.php?p=banlist&searchText=STEAM_0%3A0%3A32102185&Submit= <-- KAC caught you.

A hack that contains your Steam ID