I wonder if you guys would feel the same if the dude had posted a way to hack visa card transactions...
You're missing the point, since all hardware that makes those transactions IS owned by Visa, whereas a sold PS3 does not belong to Sony. It belongs to the consumer.
Visa owns my credit card ?
That's new to me... They may own the devices that read those cards but in most civilized countries ( except the US that are very backwards in that area) credit cards actually have chips and software on them...
These is what I am talking about :
Yes. Read the terms and conditions when applying. All credit cards remain the property of the credit card company.
Sony have their own TnC's about the PS3 and its security...
This is only agreed to when using PSN.
You can hack your console completely without even signing up to PSN or being confronted with that EULA.