The DayZ Forums announce patch #2 is now live in the standalone version of DayZ, the zombie game which has become wildly successful in the brief time since its early access release (thanks IncGamers). The patch addresses a security issue that has also prompted a full character wipe, and Bohemia Interactive warns that this may not be the only time this happens during testing:

Important updates like this WILL attract database wipes during the alpha process. We apologize for the inconvenience but I am sure everyone can agree, it is not fair to keep going with the bad data and some of the unfinished items were spawned in game - which could cause crashes and other issues thus confusing our alpha testing. Many people were experiencing crashes relating to these items that had been created in the game.

I realize this is a little vague, but its our policy to be suitably vague about specifics regarding implemented security measures.