Twist of fate: Sony sued for illegally using software to keep pirates out!

Encryption vendor claims AACS infringes its patents, sues Sony – Arstechnica

Canadian encryption vendor Certicom yesterday filed a wide-ranging lawsuit against Sony, claiming that many of the products offered by the electronics giant infringe on two Certicom patents. This might sound like business as usual until you realize what’s being targeted: AACS and (by extension) the PlayStation 3.