Cybersecurity and Infrastructure Security Agency on Twitter: "An Iranian government-sponsored APT group is exploiting Fortinet & Microsoft Exchange ProxyShell vulnerabilities to gain access to systems & deploy ransomware. Read our joint Advisory with @FBI, @CyberGovAU, & @NCSC to reduce your risk: https://t.co/W96k2p4W9S #StopRansomware https://t.co/tq0ZjdkY9i" / Twitter