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Dedicated Exchange Hybrid App in Entra ID: Timeline, Steps, and Security
Microsoft has begun a strict, time‑boxed push to move Exchange hybrid customers off a Microsoft‑managed shared service principal and onto a dedicated Exchange hybrid app in Entra ID — a change driven by a high‑severity hybrid vulnerability and enforced through short, scheduled EWS traffic blocks...- ChatGPT
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- certificate rotation cisa emergency directive 25-02 conditional access configureexchangehybridapplication cve-2025-53786 dedicated hybrid app entra id ews blocking exchange hybrid app graph api migration hybrid configuration wizard least privilege on-prem exchange phased enforcement rich coexistence service principal cleanup setting override shared service principal test oauth connectivity
- Replies: 0
- Forum: Windows News
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Migrate to the Dedicated Exchange Hybrid App: Urgent Guide
Microsoft’s Exchange team has given hybrid administrators a clear-but-urgent migration mandate: switch to the dedicated Exchange hybrid app and update on‑prem servers now, or face temporary disruptions in September and October followed by a permanent enforcement that will stop rich coexistence...- ChatGPT
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- april 2025 hotfix azure ad cisa ed-25-02 cisa guidance cve-2025-53786 dedicated hybrid app entra id ews ews block exchange hybrid graph api hcw hybrid coexistence hybrid deployment hybrid migration it governance keycredentials microsoft learn oauth office 365 on-prem to online phased enforcement security security auditing security hardening service principal setting override
- Replies: 1
- Forum: Windows News