Sony has reportedly nullified the threat of PSJailbreak in its current form by locking new PS3 game code to the console's 3.42 firmware.
While recent releases like Castlevania: Lords of Shadow and Enslaved are still vulnerable to the USB-based hack, Digital Foundry suggests new PS3 games - beginning with this week's Medal of Honor - are not.
The site reports that the recent PS3 firmware release 'appears to include an all-new decryption key not present in earlier versions'.
It adds: 'Medal of Honor and all titles going forward are encrypted with the new key, meaning that the Jailbreak in its current form has been effectively nullified: the existing firmware it's based on simply can't read the code.'
It's good news for Sony ahead of major holiday season releases like Gran Turismo 5 and Call of Duty: Black Ops, although we wouldn't bet against the hackers fighting back in the near future. They're nothing if not persistent.