What if GFN got a virus by Steam games?

It seems to be becoming more and more common that some games in steam are infiltrating malwares. I was thinking, after the new update and implementation of "install to play" adding 2000 indie games, with more of them incoming, the chances of one of them being infected are increasing. Let's imagine that this situation occurs. My question is, wich can be the technical consequences for Nvidia servers? Maybe the next one is stupid because we are streaming, but, that can affect our PCs? Maybe that malware can access to nvidia databases and get our info about credits cards, etc. It may never happen, but it is a possibility. Think about it, its important.