(Source: Washington Post, November 28, 2016)
WASHINGTON, D.C. — The San Francisco Municipal Transportation Agency (SFMTA) was hit with malware that held its computer systems hostage on Friday and caused problems over the weekend as attackers reportedly sought a ransom to release their digital grip on the system. SFMTA said transit services were not affected by the attack. But fare machines inside the stations were lit up with “OUT OF SERVICE” messages over the weekend, according to the San Francisco Examiner, which was among the first outlets to report on the incident. And trains kept running — with passengers getting a free ride, the SFGate reported.
Full story: Washington Post