The new policy will come into effect on October 15th and AVG claims it will use data that does not identify you, so-called non-personal data, to improve its services and to help keep their software free.
AVG's potential ability to collect and sell browser and search history data placed the company "squarely into the category of spyware", according to Alexander Hanff security expert and chief executive of Think Privacy.
"Antivirus software runs on our devices with elevated privileges so it can detect and block malware, adware, spyware and other threats," he told WIRED. "It is utterly unethical to [the] highest degree and a complete and total abuse of the trust we give our security software." Hanff urged people using AVG's free antivirus to "immediately uninstall the product and find an alternative".