No because then they could lose money knowingly if they hacked Sony. Apple only wants to unintentionally lose money
Well the thing is, its not too difficult to do something anonymously. If I could hack I could do it myself. First I'd have all the basic ip hiders and stuff. But, I would not do it at my house or at my place of work, but in a place of free public wifi. Apple got pissed at Sony for threatening to take their music off of itunes. So, who's to say that Apple couldn't have thought to hack them, thus stopping Playstation Network and Qriocity. Thus, Sony would lose profits and Apple might even gain some. Another thing, I have not seen a single story of someone who got their credit card used without them knowing because of the breach. Apple is obviously not going to use people's credit cards which could be why there are know stories. The information may have just been stolen to discredit Sony.