San Francisco: The San Francisco Municipal Transportation Agency (SFMTA) was victim of a ransomware attack that disrupted some its internal computer systems including email.
However, the public transportation authority said the transit service was unaffected and there were no impacts to the safe operation of buses and subway trains.
Neither customer privacy nor transaction information were compromised, Xinhua news reported on Tuesday.
This is an ongoing attack that started on November 25, targeting the SFMTA from which the hacker has demanded 100 Bitcoin, equivalent to about $73,000.
Photos: Akshay Kumars son Aarav's night out in Juhu
Photos: Shilpa Shetty, son Viaan, Geeta Basra on 'Aunty Boli Lagao Boli' sets
Photos: Isha Ambani and mom Nita show their stylish side
Photos: Ileana D'Cruz flaunts plunging neckline in black dress
Photos: Shamita Shetty, Bhumi Pednekar at fashion show