In an attempt to reclaim the PS3, Sony's rolled out firmware update 3.56, adding a security patch to prevent circumvention of the console's security.
The new patch supposed keeps users with custom firmware out of the PlayStation Network since it will require users running firmware lower than 3.56 to sign in and update. It also terminates all existing homebrew applications and functionality using a new encryption key.
However, Wii hacker Youness Alaoui, also known as KaKaRoToKs, has reportedly cracked the new firmware and published its signing keys within hours of its release, not even a full day.
Expect more updates on the situation.