Sony CEO Sir Howard has said Sony was hacked because it "tried to protect" its content from those who "want everything to be free".
"We believe that we first became the subject of attack because we tried to protect our IP, our content, in this case videogames," Stringer said, speaking to shareholders this morning.
"These are our corporate assets, and there are those that don't want us to protect them, they want everything to be free".
Stringer was called on to resign over the PlayStation Network hacking incident, but chose to deflect the request.
A external intrusion in mid-April brought the PlayStation Network down for over a month while Sony shored up security, with 77 million user records, including credit card details and passwords, compromised in the process.