City of Oldsmar, Florida

A hacker tried to use the vulnerable and unsecured infrastructure controls of water supply servers at Oldsmar, Florida to contaminate the water supply in the city.

He hijacked a remote access system to increase the amount of sodium hydroxide in the water to a potentially deadly level.

The officers at the plant disabled the remote access before any tragedy could take place and now planning to secure the systems from any such incident in the future.

Source: https://www.scmagazine.com/news/security-news/network-security/security-gaps-in-operational-tech-exposed-with-hacker-attempt-to-poison-florida-city-water

"id": "CIT163428222",
"linkid": "city-of-oldsmar-florida",
"type": "Vulnerability",
"date": "02/2021",
"severity": "100",
"impact": "6",
"explanation": "Attack threatening the economy of a geographical region"