Microsoft Phishing Emails: How to Spot Fake Microsoft Security Alerts and Office 365 Scams

Microsoft holds a unique position in phishing statistics: according to Check Point’s Brand Phishing Report, Microsoft is the world’s most impersonated brand — across email, mobile, and web — responsible for more than 30% of all brand phishing attempts globally in recent quarters. This is driven by Microsoft’s dominance in corporate email (Outlook/Exchange), identity (Microsoft account), and productivity tools (Office 365 / Microsoft 365).

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Common Microsoft Phishing Formats

Microsoft Account Security Alert: “Unusual sign-in activity detected on your Microsoft account. Verify your identity.” Link to a fake Microsoft login page that harvests credentials and sometimes then asks for MFA codes.

Office 365 / Microsoft 365 Credential Harvest: The most common corporate phishing attack. An email appears to come from Microsoft IT or a colleague, requesting the recipient click a link to verify their Microsoft 365 credentials or access a shared document. Used in business email compromise and corporate espionage attacks.

Fake Microsoft Teams Notification: “You have a new message in Microsoft Teams from [Colleague Name].” Link leads to a fake Teams login page.

Fake SharePoint / OneDrive File Share: “John Smith has shared a document with you in SharePoint.” Link leads to a credential-harvesting page rather than a real SharePoint document.

Microsoft 365 Subscription Renewal Invoice: Same antivirus-style renewal scam, impersonating Microsoft instead of McAfee or Norton.

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How to Identify Fake Microsoft Emails

Real Microsoft account emails come from @microsoft.com or @account.microsoft.com. Office 365 notification emails come from @email.microsoft.com or @office.com.

Microsoft will never ask for your password via email.

For any Microsoft security alert: go directly to account.microsoft.com (type the address) and check for real security alerts in your account dashboard.

For Microsoft 365 business alerts: check directly in your Microsoft 365 admin center or contact your IT department — do not click links in emails claiming to be from Microsoft IT.

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How to Report Microsoft Phishing

Report to Microsoft: Use the “Report Phishing” add-in in Outlook or go to microsoft.com/en-us/wdsi/support/report-unsafe-site-guest.

For Office 365 business accounts: use the Microsoft Defender Submissions portal at security.microsoft.com/reportsubmission to report phishing emails.

Report to the FTC: reportfraud.ftc.gov

→ Back to Pillar: https://www.scammed.org/phishing/