Botnet hunters say some of the largest botnets have largely escaped media attention. Hackers are moving away from centralized command-and-control botnet structure in favor of peer-to-peer architecture. The newer botnets are also better at snuffing out a machine’s security controls. Malware can shield itself from detection by using strong cryptography to protect the command and control centers. Popular apps are beyond IT’s control of IT, such as Pandora and Yoics, are not endorsed by corporate IT.”]