Avast, the multibillion-dollar Czech security company, doesn’t just make money from protecting its 400 million users’ information. It also profits in part because of sales of users’ Web browsing habits and has been doing so since at least 2013.
That’s led to some labelling its tools “spyware,” the very thing Avast is supposed to be protecting users from. Both Mozilla and Opera were concerned enough to remove some Avast tools from their add-on stores earlier this month, though the anti-virus provider says it’s working with Mozilla to get its products back online. But recently appointed chief executive Ondrej Vlcek tells Forbes there’s no privacy scandal here. All that user information that it sells cannot be traced back to individual users, he asserts.
Source - https://news.hitb.org/content/how-popular-free-antivirus-program-sells-your-data