Why you should avoid AMD and get a Steam Machine with Nvidia's GeForce graphics. Nvidia's graphics cards may be a black box, but they're easily the best-performing option on Linux machines.
The Visa Zero Liability policy protects VISA cardholders who have a Canadian issued. VISA card and experience fraud through unauthorized used of their card. The Visa Zero. Liability policy does not apply to ATM transactions or commercial cards (VISA Business.
As of October 17, 2014 both VISA and MasterCard will be changing their zero liability policies. Although they have the same effective date, there are a few key differences to the policy changes: MasterCard.