News date: 2026-10-26 · Sources reviewed: 2026-10-26

Access to corporate email and apps increasingly depends on the actual security posture of the device. Microsoft documentation reviewed on 26 October 2026 says Intune will enforce Google’s updated Strong Integrity definition for Android 13 and later by 31 October 2026. This makes a pre-change review worthwhile for organizations managing both personally owned and corporate Android devices.

What Strong Integrity now means

Google requires stronger hardware-backed integrity signals and security updates within the past year for Strong Integrity on Android 13+. This is different from the less stringent Device Integrity verdict. The verdict itself does not automatically block access; applications and organizational policies decide how to act on it.

This particular change targets Android 13 and later, not Android 12 and earlier.
Microsoft names 31 October 2026 as its enforcement deadline.
A phone may still work normally while no longer meeting the strongest integrity tier.

When Microsoft 365 access may be affected

Impact depends on the tenant’s Intune app protection, device compliance and Conditional Access configuration. Android 13+ devices without a security update in the previous 12 months may move from Strong Integrity to Device Integrity. Where a policy requires the stronger result, a protected app may be blocked at launch or a device may become noncompliant, affecting access to corporate resources.

Not every Android phone will be blocked.
Conditional Access is relevant when device compliance is part of the grant controls.
Android security patch age is important, but is not the only device signal.

An administrator’s verification checklist

In the Intune admin center, open Apps > Monitor > App protection status and inspect Android patch version, OS version, app, user and last sync. Review Android app protection Conditional Launch settings and Android Enterprise compliance policies. Match each potentially affected device to the actual assigned policies before predicting an outage.

Export an inventory of Android 13+ devices with outdated patches.
Identify policies that require Strong Integrity or a minimum patch level.
Review related Conditional Access assignments and exclusions.

A low-risk plan before the deadline

Ask users to install available vendor security updates. Validate Outlook, Teams and other protected apps with a small, representative pilot group. For models that no longer receive security patches, assess replacement or a time-limited, documented risk exception; avoid disabling protection globally simply to reduce support calls.

Notify affected users before 31 October 2026.
Test both personally owned and corporate Android devices.
Monitor noncompliant status and helpdesk incidents after enforcement.

Build a sustainable mobile security baseline

The broader lesson is lifecycle management: supported devices, patch visibility, enforceable minimum standards and controlled access. A measured Intune rollout makes policy effects observable before changes are applied to everyone.

Document supported device types and update requirements.
Assign owners and expiry dates to policy exceptions.
Review compliance trends and user impact regularly.

VALUE360 can help assess Intune, Android compliance and Conditional Access through a controlled pilot and documented rollout plan. Final behavior depends on each tenant’s licenses and policy assignments.

Explore the related VALUE360 service →

Sources

Microsoft 365 environment review

Inventory Entra ID policies, user and application permissions, audit logs and exceptions. Pilot changes with a limited group, validate access impact and define a rollback path.

Implementation questions

Does this automatically affect our environment?

No. First verify whether the specific product, version and relevant configuration are deployed.

Is a security tool enough on its own?

No. Combine patching, restricted access, logging and tested backups.

Microsoft Intune: Android Strong Integrity change on 31 October 2026