Good Morning and Welcome to the ProactiveIT Cyber Security Daily number 441 It is Wednesday September 29th 2021. I am your host Scott Gombar and What Happens When Microsoft 365 MFA Doesn\u2019t Work?\nNSA, CISA share VPN security tips to defend against hackers\nFinFisher malware hijacks Windows Boot Manager with UEFI bootkit\nTwitter web client outage forces users to log out, blocks logins\nMicrosoft 365 MFA outage locks users out of their accounts\nClass Action Lawsuits Filed Against San Diego Health Over Phishing Attack