FOUND THIS ON FORUMS
was playing a public act 3 inferno game this morning when a barbarian join my game. He started party chatting about he was god and had some invincible exploit and general trash talking. I ignored him until he zoned into my area and ran ahead through packs of mobs and started aggroing all the elites.
First he brought in a huge group of these extra large knockback/vortex/desecrator mobs which I couldn't get around. They filled my screen, I was trapped, so I had to try and tank them. But due to the sheer amount of mob and the frequency of knockback/vortex my attacks were always interrupted (which in turn stopped my LoH heal) and I died pretty quickly.
I watched him battle these mobs and noticed he wasn't being knockbacked or vortexed and could just walk through the wall of mobs to get out of any AOE ground damage, in other words he was immune to being trapped in one spot or otherwise stunned.
I tabbed out of the game, launched my video recording application and rejoined the game. After about 20 minutes of this garbage with barb never dieding or coming close to dying, and aggroing everything, I quit the game to rewatch everything I recorded.
Basically what his exploit does is remove all mob blocking and all control imparring effects. Using this exploit you cannot be frozen, jailed, knocked back, vortexed, stunned, or otherwise interrupted. You can also walk through all mobs and never get trapped.
Below is a video edit highlighting this exploit:
http://youtu.be/sljIbx4Z_uUUpdate 1: I didn't say the barbarian was hacking the game. Obviously it's some equipment/build configuration. The point is it's a god mode where you never can die, and that is an exploit.
Update 2: Move video to 3:30 too see how broken this exploit is.