About modding achievements on Xbox Live

So guys,

I have an alt account (silver on Xbox Live) and I haven’t connected to live since 10 days now, so I unlocked all the achievements for one game I have on my profile and now plan on connecting to Xbox Live. So, if I don’t add any friends on that account (I won’t ever, really), set my game history to only me, not register on TrueAchievements and add and mod a lot of full games over a long period of time, then what are my chances of getting banned? I also won’t ever play online on that account either, I wanna mod gamerscore just for show. And even if I do get caught (which has pretty less chance since I’m not making it visible anywhere) will I get console banned? I really don’t want to get my console banned for it. I’m fine if it’s just a gamerscore reset.

What do you think?

It will only be a gamerscore reset if you do get caught.

Try it it i want banned my gamer score is 65900

Just gamerscore reset. ( Happened to me )