This is possibly overly alarmist by Google - this happens on another forum I frequent, and it's usually caused by just embedding an image hosted on a site that's been compromised.
Unlikely for there to be any implications for your device, but you may not know if you're posting a link to a site which could cause harm to other users.Originally Posted by Matt1974
Lots of pop-ups is not necessarily something to go by; malicious code does not need a pop-up to infect a computer. It's probably safe to say that it's more likely on sites you might expect it on (porn, pirated software sites etc).
I would be surprised if the majority of surfers are not still using Windows.