Eight North Korean agents have also been sanctioned by the agency for aiding in the evasion of sanctions and promoting their nation's WMD development.

The current measures are apparently a direct response to the Democratic People's Republic of Korea's (DPRK) purported launch of a military reconnaissance satellite on November 21 in an attempt to hinder the DPRK's ability to produce revenue, obtain resources, and obtain intelligence to further its WMD program.

"Active since 2012, Kimsuky is subordinate to the UN- and U.S. designated Reconnaissance General Bureau (RGB), the DPRK's primary foreign intelligence service," the Department of Treasury stated. "Malicious cyber activity associated with the Kimsuky advanced persistent threat is also known in the cybersecurity industry as APT43, Emerald Sleet, Velvet Chollima, TA406, and Black Banshee."

The OFAC, in August 2010, linked Kimsuky to North Korea's primary foreign intelligence agency, the Reconnaissance General Bureau. 

Kimsuky’s operations mostly consist of stealing intelligence, focusing on foreign policies and national security concerns regarding the Korean peninsula and nuclear policy. 

High-Profile Targets of Kimsuky

One of the most notable high-profile targets of the North Korea-based cyberespionage group includes the compromise of South Korea’s nuclear reactor operator in 2018, Operation STOLEN PENCIL against academic institutions in 2018, Operation Kabar Cobra against South Korean government organizations and defense-related agencies in 2019, and Operation Smoke Screen the same year.

Kimsuky was responsible for targeting at least 28 UN officials and several UN Security Council officials in their spear-phishing campaign conducted in August 2020. The cyberespionage group also infiltrated infiltrated South Korea's Atomic Energy Research Institute in June 2021. 

In September 2019, the US Treasury Department imposed sanctions on the North Korean hacker groups Lazarus, Bluenoroff, and Andariel for transferring money to the government of the nation through financial assets pilfered from global cyberattacks against targets.

In May, OFAC also declared sanctions against four North Korean companies engaged in cyberattacks and illegal IT worker schemes intended to raise money for the DPRK's weapons of mass destruction (WMD) programs.