The PlayStation Blog has updated to let us know that there's a new firmware revision for the PlayStation 3. When next you boot, you'll get the opportunity to enjoy all the features of version 3.42 following a lengthy download, installation and reset. And they're "security" features, at that!
Which is to say, Sony will let you continue to play multiplayer games on PlayStation Network and you'll allow them to close an exploit used by some recent troublemakers and neither of you will ever speak of it again. That would be my guess, at any rate. Apart from that last bit, because this is likely to start happening a lot more now.
This is why we can't have nice things. Some people seem think that hackers are hurting the owner of a closed system when they expose these vulnerabilities and open up platforms to unsigned code (or, more accurately, piracy). But for Sony it's just a matter of reallocating resources. They'll apply more money and manpower to engaging in trench warfare with the internet and get it either by charging more for existing services or by spending less on developing new services.
Either way, the person really getting screwed is the honest consumer.
PlayStation 3 System Software Update v3.42 Now Available [PlayStation Blog]