How do you force credit card data off of a computer? From an OS perspective it’s just data some application is storing. The OS has no way of knowing if what the app is storing is user preferences or sensitive information.
As for closing all security holes, that’s a lot of what they’re trying to do with the updates. Unfortunately the only way to make a 100% secure OS is to make an OS that does nothing. Anything you can do legitimately can be done illegitimately.
And you think cellphones, with their much higher level of data sharing, are an answer?
If your PC is running hot check its ventilation. Is the fan port obstructed? Dusty? Unless you’re doing some serious overclocked gaming type stuff PCs really don’t warm up from normal use.
“How do you force credit card data off of a computer?”
I gave an example: 4149