The Cybersecurity and Infrastructure Security Agency (CISA) published guidance on switching from Basic Authentication (“Basic Auth”) in Microsoft Exchange Online to Modern Authentication ("Modern Auth") before Microsoft begins permanently disabling Basic Auth on October 1, 2022. According to CISA, “Basic Auth is a legacy authentication method that does not support multifactor authentication (MFA).” Although this guidance is tailored to Federal agencies, CISA urges all organizations to review Switch to Modern Authentication in Exchange Online Before Basic Authentication Deprecation and prioritize moving to Modern Auth. Read more at CISA.