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Backup your backups!
FBI Says Backup Now—Advisory Warns Of Dangerous Ransomware Attacks
“The FBI has observed Ghost actors obtaining initial access to networks by exploiting public facing applications that are associated with multiple Common Vulnerabilities and Exposures,” the advisory said. “Their methodology includes leveraging vulnerabilities in Fortinet FortiOS appliances, servers running Adobe ColdFusion, Microsoft SharePoint and Microsoft Exchange, commonly referred to as the ProxyShell attack chain.”
By way of Forbes