ZD Net reports Google is now pushing out over 60 million warnings per week to help users avoid installation of unwanted bundled software, a figure that's three times higher than the malware warnings served by the search giant:
According to Google, it issues three times as many unwanted software warnings than malware warnings, much of which relates to adware and browser hijacking software that's been sneakily bundled with legitimate software.
Ad affiliate networks know that people rarely read terms and conditions and exploit this failing by burying details about bundled software in the text of a consent form. Consumers may not want the additional software, but their consent allows the affiliate marketer to operate legally.
Unfortunately, a lot of reputable software makers sneak extra software into their installs so ending up with unwanted bundled software on your computer is very easy if you aren't careful enough or click "next" a bit too fast because these offers are usually enabled by default.