MC1454382: Microsoft Defender for Endpoint on Android Requires Update to Version 1.0.9107.0101 to Maintain Protection

3 minutes
MWPRO IMPACT SCORE
OPERATIONAL IMPACT
67
0 25 50 75 100
HIGH IMPACT • REVIEW RECOMMENDED
Recommended Action:
Review the update and plan any required actions before rollout.
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Primary Audience

Tenant AdminsMicrosoft 365 AdminsSecurity TeamsIT ManagersService Owners
Why this score?
AI Confidence
HIGH
Enough detail is available to trust this assessment.
Assessment Reasoning
Admins must ensure all Android devices using Defender for Endpoint are updated to a specific minimum version before mid-September 2026 to maintain mobile threat protection. This involves inventory checks, device updates and user communication for unmanaged devices. Failure to act could result in service disruption, making urgency and implementation effort significant. User impact is indirect but may surface if devices lose protection or require update steps.
78
🛡️ Admin Impact
CRITICAL
36
👥 User Impact
MEDIUM
72
⚡ Urgency
HIGH
65
🔧 Effort
HIGH
ℹ️ WHAT YOU NEED TO KNOW
📌

AT A GLANCE

Devices using older Defender for Endpoint on Android must update to version 1.0.9107.0101 or later to avoid disruption.
👥

END USERS

Users may need to update their Defender for Endpoint Android app.
🛡️

IT ADMINS

Check managed devices’ Defender version, update if needed, and inform users who control their own updates.
📅

ROLLOUT TIMELINE

Rolling out:
Aug–Sep 2026

📢 Official Microsoft Message Center Announcement

Action required: Update Microsoft Defender for Endpoint Android App
Message ID: MC1454382

[What and Why:]

To support upcoming Microsoft Defender infrastructure changes, organizations must ensure devices are updated to Microsoft Defender for Endpoint for Android version 1.0.9107.0101 or later. Devices running older app versions may experience disruption to mobile threat protection capabilities after the infrastructure update, and administrators should communicate the update requirement to affected users.

[Rollout Schedule:]

Worldwide, GCC, GCC-High, DoD: We will begin rolling out on early August 2026 and expect to complete by mid-September 2026.

[Impact on your organization:]

As part of an infrastructure update expected by mid-September 2026, devices running older versions of the Microsoft Defender for Endpoint Android app may experience disruption to mobile threat protection capabilities if they are not updated to a supported version.

[Action Required/Recommendations:]

To avoid potential service disruption following the infrastructure update, administrators should:

  • Verify that managed devices are running a supported version of Microsoft Defender for Endpoint.
  • Update devices running older app versions to the latest available release:
  • Android: Version 1.0.9107.0101 or later
  • Communicate this requirement to users who manage application updates themselves.

No additional configuration changes are required. Updating to a supported version of Microsoft Defender for Endpoint is sufficient to maintain access to protection capabilities following the infrastructure update.

Source: Microsoft Message Center • Analysed by MWPro

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