Mei's infamous Ice Wall glitch has been identified, patched, and the player's who used this exploit punished.
For those unaware the Mei Ice Wall glitch allowed players to push themselves behind the map Ecopoint: Antarctica. Players would go into the upper level and use the Ice Wall while crouched to push themselves behind the map, allowing them to shoot enemy players without fear of being hit.
According to game director Jeff Kaplan the development team has taken full action against this exploit.
"Hi. This bug was surprisingly tricky for us to track down but we believe we have identified a fix. Our hope is to have it fixed sometime tomorrow (1/5/2017 PST) but there is always the chance that our fix could fail. We're currently testing to verify the fix.
This bug is clearly an exploit and we consider this cheating. Do not attempt to reproduce this bug. If you see someone abusing this mechanic, please report them.
We will be taking action against those who abused this exploit. Overwatch is a PvP experience so that means exploiting game mechanics like this comes at a cost to those you are competing against. We take aggressive action against people who abuse game mechanics, hack or cheat. This case is no different.
Apologies that this bug lingered for as long as it did. Hopefully this should go away soon (along with those who abused it)."
This isn't surprising as the development team for Overwatch has shown in the past to take cheating in their popular PvP game very seriously, permanently banning any player for a single offense.
Overwatch is now available for Xbox One, PS4, and Origin PC.