WHO: Lin Mun Poo of Malaysia

WHAT: A federal grand jury in Brooklyn, N.Y., indicted the Malaysian on four counts involving hacking into a Federal Reserve Bank computer network and possessing more than 400,000 stolen credit and debit card numbers. The career criminal is known for hacking  computer servers for financial institutions, major corporations and defense contractors, then selling the information for personal profit.

HOW: The defendant, who was arrested shortly after arriving in the U.S. on Oct. 21 at New York’s John F. Kennedy International Airport, allegedly gained unauthorized access to federal credit unions, including the Firemen’s Association of the State of New York and the Mercer County (N.J.) Teachers’ Federal Credit Union. He also is reported to have hacked into a Department of Defense contractor’s network and might have compromised highly sensitive military logistics information.