A hacker tried to poison a Calif. water supply. It was as easy as entering a password.

On Jan. 15, a hacker tried to poison a water treatment plant that served parts of the San Francisco Bay Area. It didn't seem hard.
Read more: https://www.nbcnews.com/tech/security/50000-security-disasters-waiting-happen-problem-americas-water-supplie-rcna1206?source=Snapzu