The U.S. government linked the MuddyWater hacking group to Iran's Ministry of Intelligence and Security (MOIS) in a January 12 press release. By publishing MuddyWater's signature malicious code and intrusion methods, U.S. Cyber Command hopes to enable private sector organizations to better defend themselves from it. In the past, the hacking group has attacked government systems in Turkey, Jordan, Iraq, and some organizations in North America. This is the first time the United States has publicly linked the group to MOIS.