The APT1 hackers were able to crack into American companies computer networks and systems by targeting human weakness, Mandiants CEO Kevin Mandia said. Mandia predicted that the Chinese hackers in the unit identified in the report will likely be redistributed to other hacker units associated with the military. The Chinese hackers are primarily after American intellectual property (IP) because they believe gaining access to the blueprints and business plans of American companies will bolster both their economy and national security.”]