cy‧ber‧ter‧ror‧ist /ˈsaɪbəˌterərəst, ˈsaɪbəˌterərɪst $ -bər-/
noun [countable] someone who uses the Internet to damage computer systems, especially for political purposes:
Such a strategic attack, mounted by cyberterrorists, would shut down everything from power stations to air traffic control centres.—cyberterrorism noun [uncountable] [TahlilGaran] Dictionary of Contemporary English ▲