https://wccftech.com/avast-is-selling-user-data/

Avast has evidently been harvesting user data through opt-ins that don't tell the complete story to its antivirus users. If you believed your antivirus protected you from malware, turns out it did that at the cost of sharing your entire online existence with the buyers, including the likes of Google, Pepsi, and Home Depot.

A Motherboard and PCMag investigation has revealed that documents from Jumpshot, an Avast subsidiary, "shine new light on the secretive sale and supply chain of peoples' internet browsing histories." Avast antivirus program has been collecting data from its users, which is then repackaged by Jumpshot into different products sold to some of the biggest companies in the world.