Operation High Roller was a series of fraud in the banking system in different parts of the world that used cyber-collection agents in order to collect PC and smart-phone information to electronically raid bank accounts. It was dissected in 2012 by McAfee and Guardian Analytics. A total of roughly $78 million was siphoned out of bank accounts due to this attack. The attackers were operating from servers in Russia, Albania and China to carry out electronic fund transfers.

This cyber attack is described to have the following features:

While some sources have suggested it to be an extension of man-in-the-browser attack Operation High Roller is reported to have harnessed a more extensive level of automation distinguishing it from the traditional methods.