Ryan Ackroyd, 26; Jake Davis, 20; and Mustafa al-Bassam, 18, who was not named until now because of his age, all admitted their involvement in the hacktivist gang's attack spree.
The web measurement company is accused of secretly collecting data on millions and then sharing it with clients.
Law enforcement in Russian and Ukraine have dealt a major blow to a prolific banking malware operation.
Apr 04, 2013
The software giant expects to distribute eight other fixes to correct vulnerabilities in Windows, Office, Server Software and Security Software.
The security company is urging customers to upgrade to the latest version of the appliance, which is not susceptible to the vulnerabilities reported Wednesday by researchers at SEC Consult.