Comscore has been a subject of some controversy in the past. And apparently, despite being flush from a successful IPO, the controversy continues.
Today, Ben Edelman released a short piece called, “Comscore doesn’t always get consent”:
At least as serious are ComScore's installation practices. ComScore pays independent distributors to install ComScore software onto users' computers. Predictably, some of these distributors install ComScore software without getting user consent.
Using independent distributors to get downloads is a recipe for disaster. We ourselves (as Ben mentions in his article), have just recently documented a non-consensual install of Relevant Knowledge.