This PS3 update 3.42 is all about Sony's ambition to make the PS3 a completely uncrackable console. While the Sony policy is very strict about certain matters, there are still thousands of people out there using jailbreaked PS3s but all that is about to change for a brief period of time with the installation of the PS3 update 3.42.
No doubt there will be hackers out there who will be racking their brains to bypass this new update and as sure as one can be about this fact, one can know for certain that it will only be a matter of time before a knew jailbreak exploit is discovered. Nevertheless, the PS3 update 3.42 should, at least, keep the console and network free of hacked PS3s.
The previous 'firewalls' of the PS3 were nothing more than a joke for the hacking community which was lightening fast in coming out with the PSGroove jailbreak exploit. Perhaps Sony has upped the ante and hired some miracle workers for the new PS3 update 3.42... only time will tell.