Answer
PhormDiscover is a free service offered to you by your internet service provider (ISP), which will bring you a personalised and safer internet experience.
You will receive a page asking you if you want to turn the service on. If you choose to use it, PhormDiscover will automatically start working for you by understanding your interests from the pages you visit, matching them to the content of millions of websites, and providing you with personalised content and relevant advertising. And if at any time you don’t want the service, you can switch it on or off quickly and easily.
So if your ISP decides to offer you PhormDiscover, and you decide to participate, you’ll be getting personalised content, more interesting and useful advertising, all for free.