Welcome to Source Code: Decipher’s behind the scenes look at the weekly news with input from our sources. Topping the headlines this week, the Emotet malware has returned almost a year after law enforcement disrupted its infrastructure. In other news, CISA warned that Iranian threat actors are exploiting known vulnerabilities in Fortinet security appliances and the ProxyShell flaw in Microsoft Exchange servers. Finally, the DHS launched a new talent management system that aims to improve the government's efforts in recruiting top cyber talent.