Chinese government hackers targeted the U.S. Treasury’s highly sensitive sanctions office during a December cyberattack, according to reports. According

Chinese hackers who launched a cyberattack on the US Treasury Department targeted an important department of the agency that deals with sanctions against countries and groups of people imposed by the US government.

The cyberattack reported earlier this week reached into the Office of Foreign Assets Control and the Office of Financial Research, sections of the agency that oversee economic penalties against other nations and their citizens.