7 Microsoft 365 Myths to Retire

Here’s a contradiction: the accounts that can rewrite your entire tenant (i.e., read executive mail, grant a rogue app persistence, self-assign Global Admin) are often your least defended. Only 55% of organizations enforce MFA across 75–100% of their admin accounts, fewer than the 62% that do for standard users.

MFA is the most basic control there is. If it’s not enforced on the accounts with the largest blast radius, what else are you assuming is covered that isn’t?

Join Shawn McNamara for 7 Microsoft 365 myths to retire, a look at where Microsoft 365 security confidence breaks down — from admin privileges to Copilot rollouts to SharePoint growth — and what the 2026 CoreView survey of 279 IT and security leaders found when we checked those assumptions against the data.

If you lead the team responsible for managing or securing Microsoft 365, this one is for you.

What you’ll take away:

• Where security confidence and actual control coverage diverge and the gaps that show up most often in programs, leaders rate as mature.
• Why Copilot rollouts stall on permissions decisions made years ago and what to clean up before you turn it on.
• How privileged accounts, standing Entra app access, and untracked configuration changes create risk that password resets and data backups won’t
  fix.
• What Microsoft doesn’t back up, doesn’t monitor, and won’t restore for you
• How to pressure-test your own assumptions before your next audit prep, security review, or Copilot decision.