Cyber terrorism involves using computer networks to cause harm and further social, political, or ideological objectives. It can involve shutting down critical infrastructure like power grids, accessing emergency response systems, or stealing sensitive information. One example is a movie where a cyber terrorist causes blackouts, traffic accidents, and surveillance access. Past incidents include DDoS attacks against NATO by hacktivists in 1999 and changing a patient's records to cause a lethal injection. In response, the global partnership IMPACT was formed to prevent, defend against, and respond to cyber threats through cooperation between governments, industry, and cybersecurity experts.