No operating system is completely safe and no operating system that can not be hacked. Probably what LoyceV means is that the chance of having such malware on Linux is low. Linux is also completely open source.
Correct. Windows been "the place to be" for malware for decades.
Last year, 95% of all malware targeted Windows, even though it's market share is only 30% nowadays.
Are you saying that if I don't use windows the chances of this copy/paste hack is zero? For example lets say I own a Mac laptop, am I safe from this attack?
Thinking you're safe would be the biggest mistake. It's a lot safer, but even if it's a lot smaller, there's always a risk. So
assume you're not safe, and act accordingly.