How the PlayStation Network was Hacked

After a week of being down, Sony has told us that PSN was hacked and that user data was exposed. How'd it happen?

PlayStation Network HACKED (Again)? - Rooster Teeth

PSN and Xbox Live accounts hacked

Tyler. Social/Ethical Concern Security -Sony's Playstation Network

PSN Hack Attack Summary

PlayStation social media accounts hacked, PlayStation Network

Sony social media accounts hijacked as hackers claims to have

Hackers have targeted PlayStation as social media accounts

Is my account compromised? What Sony customers should know

PSN Hack: OurMine Group Claims to Have PlayStation Network Database

PlayStation Network Hacked, Personal Info, Credit Card Numbers

Sony Hacked Again: OurMine Hacks PlayStation' Twitter and Facebook

PlayStation Network hack or how 77 million players saw their

People scramble to delete PlayStation accounts as Sony hack