Measurement firm comScore has been suspended from certification by TRUSTe for violations of its rules, reports The Associated Press.

TRUSTe's Trusted Download Program, which certifies software is safe from malware, leveled the suspension because of a comScore distribution partner's actions. That partner, TRUSTe says, took advantage of a security flaw to download and install comScore's RelevantKnowledge without user consent.

comScore it has taken actions to earn back the certification, including improving its monitoring of distribution partners. The company will also disable the software installed without users' knowing it.

RelevantKnowledge is comScore's tool for tracking online behavior.