A US federal court in Atlanta this week sentenced Russian national Mark Vartanyan to five years in prison for his role in developing, improving and distributing Citadel. The malware kit was used to steal an estimated $500 million from individuals and financial institutions worldwide. It was assembled using leaked source code for the Zeus, a banking Trojan on an invitation-only basis on multiple Russian-language online forums. In all, cybercrimnals infected some 11 million systems globally with Citadel and turned the systems into remotely controlled bots.”]