So apparently Rockstar Games wants to be taken seriously, and have come out with the following statement about cheating - and the use of the fitting email address of email@example.com.
We wish them all the best and it will be interesting to see if the pool of players suspected of cheating will be bigger than the "clean" players.
Anyone found to have used hacked saves, modded games, or other exploits to gain an unfair advantage in Max Payne 3 Multiplayer, or to circumvent the leaderboards will be quarantined from all other players into a "Cheaters Pool", where they'll only be able to compete in multiplayer matches with other confirmed miscreants. In the event we decide to absolve any of these cheaters for their past transgressions they may re-enter play with the general public, however a second offense will result in their indefinite banishment. In either case, we will be removing invalid leaderboard entries to ensure that the players at the top of the charts have earned their spots fairly.
If you see anyone in Max Payne 3 multiplayer using invincibility hacks, infinite adrenaline, score cheating or doing anything else suspicious, just send us an email at firstname.lastname@example.org and include the following.