Picture this: one of your employees gets a text message that looks exactly like the login code they get every time they sign into Outlook or Teams. They type it into what they think is the Microsoft login screen. Except it isn't. It's a fake page an attacker set up an hour earlier, and the "code" just handed over access to your company's email.
This isn't a hypothetical. It's one of the most common ways businesses get broken into today, and it's a big part of why Microsoft is changing how sign-in security works for every organization that uses Microsoft 365 and Entra ID (the system behind your employee logins, previously called Azure Active Directory).

