well, I used 360 profile editor and modded mine about 29k. I got caught after about 2 months. If you do minor gamerscore modding like 2 to 3k and you use LeFluffie you will not get caught. I see people use LeFluffie and do 300000 GS. and not get caught. Its all about luck pretty much. Hope i helped
-Sean

yes they will cause you went up too much

2000 is safer as long as you do OFFLINE achievements. If you unlock ONLINE achievements offline then thats an easy way to get caught.

Tsuruke wrote 2000 is safer as long as you do OFFLINE achievements. If you unlock ONLINE achievements offline then thats an easy way to get caught.

Unless, of course, you set it to a date that MS would believe.

Maybe space out the achievements like 1 day between each. Take longer but looks legit.

Or do it offline- far easier and more excuses.

i unlocked all of mine at one time from 1.1k to 35K and it took MS A Dash Update and a half just to catch me! Muhahhahah

but yeah up a couple of K wouldn't do that much damage at all, as long as they are offline and you leave your account off for a day or so!

TheUglySod wrote hi iv had my account for 4 years now so i have a 4 year badge on my acc n my gamerscore is 19,500 if i got my gs up bout 3000 or 2000 would they find out , if so ,how ?

Yes they would, eventually, randomly getting 3k gamerscore that you didn't earn is usually modding, that's how they'd know. don't get online achievements.
+rep please!

i modded mine to 8k and they cought me so i just get them legit now but im about to mod it again.

i modded mine from 3.5k to 27k and i still haent got cought youll befine some kids have there modded 400k plus and never get cought