The Department of Justice (DOJ) on Thursday tapped Eun Young Choi to head its new crypto crime task force, pushing forward Washington’s efforts to grapple with increasingly sophisticated cybercrimes from North Korea and a range of other actors.

Choi will head the DOJ’s National Cryptocurrency Enforcement Team (NCET), which was created last October to strengthen U.S. efforts to tamp down on the illegal use of cryptocurrencies.

“The NCET will play a pivotal role in ensuring that as the technology surrounding digital assets grows and evolves, the department in turn accelerates and expands its efforts to combat their illicit abuse by