Why the ubiquitous nature of Office 365 poses unique challenges for MFA-based security and how organizations can protect themselves
"Attacks like password spraying, brute force, and phishing have targeted Office 365 cloud users for years,"
notes Yassir Abousselham
"Most incidents share a common thread: access to the right combinations of usernames and passwords along with legacy authentication mechanisms like basic authentication.
Attacks targeting email accounts protected only by single factor authentication, such as a password - even a 'strong' password - see a higher probability of success. Against these odds, MFA has become a necessary line of defense. Using strong factors discourages attacks by introducing an extra layer of authentication to complete the sign-in process..."
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