There are ads that serve malware, for example. It has happened on reputable websites, like Forbes and New York Times. https://www.extremetech.com/internet/2206

There are ads that serve malware, for example. It has happened on reputable websites, like Forbes and New York Times. https://www.extremetech.com/internet/220696-forbes-forces-readers-to-turn-off-ad-blockers-promptly-serves-malware https://www.extremetech.com/internet/220696-forbes-forces-re...