Lights That Warn Planes of Obstacles Were Exposed to Open Internet
https://www.vice.com/en_us/article/7x5nkg/airplane-warning-lights-hacked
Control panels for lights placed on tall structures to warn airplanes not to hit them were exposed to the open internet, meaning hackers could have turned the lights off.
The news highlights how sensitive systems intended only for internal use by a certain team of people can accidentally be exposed to the wider internet, including those with malicious intent.