Hackers have released a custom firmware which allows compromised consoles to log into PSN, alongside LV0 decryption keys which allow the user to bypass future security updates.
According to a report on Eurogamer, via GI International, the measures were made possible for those running older firmware, or those who didn't download Sony's 3.60 firmware update which plugged up many of the holes found during the big Fail0verflow hack job last year.
The current custom firmware contains the PSN passphrase security protocol and with the release of the LV0 decryption keys, users can circumvent any future security measures Sony places in system updates.
Chinese hacking group BlueDiskCFW planned to sell the custom firmware, which made a group called The Three Tuskateers to release the LV0 keys.
The Three Tuskateers said the keys were a while back, but only just released them due to "the fear of our work being used by others to make money out of it."