Was software piracy behind the San Francisco Muni transit system ransomware infection?

Malware News
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People using San Francisco’s Muni public transportation, which consists of buses, streetcars, Metro light rail and cable cars, rode for free over the holiday weekend. It’s not like SFMTA bothered to send even a tweet to inform confused Muni riders as to what was happening.

Article Link: http://www.computerworld.com/article/3144934/security/was-software-piracy-behind-the-san-francisco-muni-transit-system-ransomware-infection.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:%20computerworld/s/feed/topic/17%20(Computerworld%20Security%20News)