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ZTCA Configuration: Restrict Microsoft 365 sign-ins to trusted IPs using Entra Conditional Access

ID: fcbf9a50-3df6-5318-a01a-eecb8868e7f8

STIX ID: report--fcbf9a50-3df6-5318-a01a-eecb8868e7f8

Feed Name: ThreatLocker Blog

Date Published: 2026-06-18

Date Updated: 2026-06-18

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This article provides a step-by-step configuration guide for Microsoft Entra Conditional Access to restrict Microsoft 365 sign-ins to approved IP addresses, including creating a Named Location, building a Conditional Access policy to block untrusted locations, testing in report-only mode, and supplementary Zero Trust recommendations such as enforcing MFA and disabling legacy authentication.

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