US court filing via CourtListener RECAP: United States v. Hyok
Spear-phishing of employees of cryptocurrency exchanges · Beginning in March 2018
Overt Act No. 18: Beginning in March 2018, defendant JON CHANG HYOK and other hackers sent electronic communications, including spear-phishing messages, to numerous employees of cryptocurrency exchanges. [Case No. 2:20-cr-00614, U.S. District Court for the Central District of California; filing: SEALED INDICTMENT filed as to Jon Chang Hyok]