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How to Track Failed Logins in Microsoft 365 Without PowerShell

Failed login attempts in Microsoft 365 are often the first indicator of a security issue. They can signal: i) Brute force attacks, ii) Credential stuffing attempts, iii) Misconfigured applications or iv) Unauthorized access attempts. Which makes tracking failed logins a critical task for every administrator.

While Microsoft Entra provides sign-in logs, isolating failed login activity isn’t always straightforward.

The Challenge with Native Sign-In Logs

To track failed logins using the default approach, admins typically need to:

  1. Navigate to the Entra Admin Center
  2. Open Monitoring & health >> Sign-in Logs
  3. Apply filters manually (set Status as Filter and Value as Failure)
  4. Review results
In practice, this comes with a few limitations:
  1. There is no simple, direct way to view only failed logins
  2. Filtering requires manual setup and can be confusing
  3. Logs must be downloaded before sharing via email
  4. Navigation across portals adds extra steps
👉 For something as critical as failed logins, this process can be inefficient and time-consuming.

A Simpler Approach Is Coming Soon

To address these challenges, we’ve been working on the M365Corner Reporting Tool — a free Microsoft 365 reporting tool designed to simplify how admins access and analyze critical reports.

One of the key focus areas: Making failed login tracking fast, clear, and actionable.

How This Will Work (Preview)

Once released, tracking failed logins will be as simple as:

  1. Go to User Sign-In Logs
  2. Click on Failed User Logins Report
  3. The report is generated instantly
No manual filters. No complex navigation.

What the Failed User Logins Report Will Offer

The upcoming report is designed specifically for security-focused visibility.

View Only Failed Logins

  • Instantly isolate failed login attempts
  • No need to filter manually
    • 👉 Focus only on what matters.

Filter Failed Logins by User

  • Filter failed logins by loggedInUser
    • 👉 Investigate specific users quickly.

Filter Failed Logins by Application

  • Identify which application triggered the login failure
    • 👉 Helps diagnose app-specific issues

Filter Failed Logins by Error Code

  • Analyze failures based on login error codes
    • 👉 Useful for troubleshooting and security investigations

Email Reports Instantly

  • Send the report directly via email
  • No need to download files first
    • 👉 Saves time and simplifies sharing

Optional CSV Download

  • Export the report if needed
    • 👉 Flexibility for further analysis

Important Note: Data Sync

To generate accurate reports, the tool will sync with your tenant data.

You can choose:

  • Automatic Sync → Runs every 30 minutes
  • Manual Sync → Trigger on demand

Native Method vs What’s Coming

Task Native Approach Upcoming Tool
View failed logins Manual filtering Direct report
Filter by user Multiple steps Built-in
Filter by app/error Complex Simple filters
Share logs Download first Direct email
Time taken High Minimal
What currently takes effort and time will soon be available in seconds.

Why This Matters

Tracking failed logins effectively helps you:

  • Detect security threats early
  • Respond faster to suspicious activity
  • Reduce investigation time
  • Improve overall tenant security posture

Final Thoughts

Microsoft Entra provides detailed sign-in logs — but isolating failed login activity shouldn’t be complicated. With the upcoming M365Corner Free Reporting Tool, failed login tracking will become faster, more focused, and easier to act on.

If you’re looking for a free Microsoft 365 reporting tool that simplifies security monitoring without PowerShell, this is something worth watching.

👉 More updates coming soon.