Since Halo 2, but I'll explain that

Don't worry I control my account.

My account. I control it.

Let me clear this up as there seems to be a huge misunderstanding. Whoever said playing with modders will get you banned is an idiot. Microsoft has been banning modded consoles since the Xbox days. These bans are targeted at individual consoles which have mods installed. So basically as long as your console is original you're safe. If you do get banned, it's your box and not your Xbox Live account. I got my Xbox banned last time when I accidentally signed on with Modchip active, but as you can see I still retained my I MobiusVyper I account.

The only way you can get banned even though you don't have mods is if you play with a modder who is cheating. So far I think this only applies to Halo 2. Halo 2 has the biggest in-game modder population. These modders use modded versions of the game files to give themselves advantage over the rest. Includes things like super speed, super jump, auto aim, etc. Now if you were playing Halo 2 matchmaking and found out one of your teammates is a modder and he's cheating, you can get banned for cheating even if you dont know the modder and you had no intention to cheat. That's why its always best to quit out if you have a modder on your team. The opposing team won't know that you're not associated with the modder. He'll just assume you are and report you for cheating.

Now in the event that you do get banned, you will only be banned from Halo 2 matchmaking. Your console won't get banned since you have no mods.

I hope that's cleared some things up