Kaspersky reported how recent attacks against a series of European industrial networks were accomplished at a vulnerability in Fortinet's FortiGate VPN. (Alexxsun/CC BY-SA 4.0)

In the early months of 2021, cybercriminals believed to be manually delivering Cring ransomware, struck a series of European industrial networks. Kaspersky is the first to report how those attacks were accomplished: a vulnerability in Fortinet's FortiGate VPN.

According to Kaspersky, one client's infection was severe enough to cause a "temporary shutdown of the industrial process due to servers used to control the industrial process becoming encrypted."

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