There’s fresh reason to be worried about Wannacry, the malicious software that hackers stole from the U.S. National Security Agency.
In May, hackers used the malware to infect computers in more than 70 countries. The attack was particularly bad in England, where the software disrupted service at many of the country’s busiest hospitals.
Now, the software has been used to take control of 55 speed and red light cameras in Victoria, the most densely populated state in Australia. The Czech security company Avast says the hackers didn’t use the Internet to launch the attack. The infection came through a USB drive.
That was likely the same technique the U.S. and Israel used to damage Iran's Natanz nuclear facility with the Stuxnet virus.
http://www.sandiegouniontribune.com/news/cyber-life/sd-me-wannacry-malware-20170622-story.html