This thread announces the promised security updates are now live for Crysis 2 as Crytek aims to curtail cheating in their just-released first-person shooter sequel (thanks Bill). Word is: "Today we released the first of a number of security updates, accounts that we have identified as exploiting an unfair advantage have been reset and if the activity persists they will be banned permanently. If you find yourself being kicked from every MP game it is because our systems have detected you cheating. We will continue to update anti-cheat software in Crysis 2 and strive for a cheat-free community." There is also a follow-up post noting that players should not assume that anyone having connection difficulties is cheating. The Crysis 2 Update Thread now also reflects this change, though the links they refer to are just plain text:

31/3 - Our fix thread has been updated to add an acknowledgment to more issues we're currently investigating

31/3 - Today we released the first of a number of security updates, accounts that we have identified as exploiting an unfair advantage have been reset and if the activity persists they will be banned permanently. If you find yourself being kicked from every MP game it is because our systems have detected you cheating. We will continue to update anti-cheat software in Crysis 2 and strive for a cheat-free community.

31/3 - If you are having problems signing into Crysis 2, you should try using your Crysis 1 login details. If you cannot remember your Crysis 1 username, please visit this page to retrieve it, using your MyCrysis account e-mail address and password.

If you do not have a Crysis 1 username, this link may still be useful as it provides you with your Crysis 2 username if your account was created successfully.