1. Malicious-software spreaders get sneakier, more prevalent;Acohido;USA Today,2006
2. Security;American Water Works Association,2012
3. Leaked email shows HBO negotiating with hackers;Associated Press,2017
4. Hackers drawn to energy sector’s lack of sensors, controls;Associated Press,2017
5. FBI busts hacker group after chief turns informant;Associated Press,2012