Multifactor Authentication Courses
Stanford University via YouTube Whispered Secrets
GOTO Conferences via YouTube Magic Without Password - Passwordless and Federate Identity
Devoxx via YouTube MFA, OTP, SMS, U2F, WTF - Multifaktor-Authentifizierung ist sehr gut
media.ccc.de via YouTube Capstone and Practice Exam (AZ-500)
Microsoft via Coursera Identity Protection and Governance 
Microsoft via Coursera Secure Access with Azure Active Directory
Microsoft via Coursera The Global Ecosystem - Scaling Beyond the Valley
Web Summit via YouTube Phishing U2F Protected Accounts
YouTube The Things You Should Be Doing Defensively Right Now
YouTube