In an incident that feels like an episode of Mr. Robot, hackers managed to gain access to parts of San Francisco’s MUNI transportation system. Last Friday, attackers managed to get into 2,112 computers and infect them with a variant of the HDDCryptor malware that encrypted all data. Screens across the system showed the following message: Though trains still ran, with the ticketing machines out of service, the San Francisco transport agency was forced to open all gates and waive fares for all riders — some of them including a note indicating the scrapped fare. The extent of the infection didn’t just stop there, however, but also included administrative…

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