Cyberterrorism is the use of computers and the internet to attack or frighten large numbers of people, usually in order to achieve political aims or to force a government to do something.
The government has pledged more money to fight cyberterrorism and other online attacks.
cyberterrorism in British English
(ˈsaɪbəˌtɛrərɪzəm)
noun
the unlawful and politically motivated use of computers and online technology to cause fear, disruption, or financial loss