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Oct 7, 2026

No incidents reported today.

Oct 6, 2026

No incidents reported.

Oct 5, 2026

No incidents reported.

Oct 4, 2026

No incidents reported.

Oct 3, 2026

No incidents reported.

Oct 2, 2026

An Issue in HENNGE Secure Browser: Microsoft 365(Outlook on the web)
Resolved - Microsoft 365 (Outlook on the web) へアクセスするとループが発生し正常にアクセスが出来ない事象は Microsoft 側で対応が行われ 2026年 10月 1日 22時 00分（JST）に解消したことを確認しております。

詳細につきましては、以下もご確認くださいますようお願いいたします。

・Microsoft 365 管理センター：サービス正常性
インシデント番号: EX1484256
https://admin.cloud.microsoft/#/servicehealth/history/:/alerts/EX1484256
※ 該当のインシデントが表示されていない場合は Microsoft 社へお問い合わせください

この度はご迷惑をおかけしましたことをお詫び申し上げます。

−−−−−−−−−−−−−−−−−−−−−−−−−−−

We have confirmed that the issue causing a login loop and preventing normal access to Microsoft 365 (Outlook on the web) has been addressed by Microsoft and was resolved on October 1, 2026, at 10:00 PM (JST).

For further details, please also refer to the following:

・Microsoft 365 Admin Center: Service health
Incident Number: EX1484256
https://admin.cloud.microsoft/#/servicehealth/history/:/alerts/EX1484256
*If the relevant incident is not displayed, please contact Microsoft.

We sincerely apologize for any inconvenience this may have caused.
Oct 2, 16:10 JST
Investigating - 現在 iOS / Android のブラウザから Microsoft 365(Outlook on the web) へアクセスするとループが発生し正常にアクセスが出来ない事象を確認しております。

本事象は、HENNGE Secure Browser だけではなく、Safari や Google Chrome などのブラウザでも発生することを確認しております。
また、HENNGE Access Control を経由した Microsoft 365 ログインを行わない場合（ *.onmicrosoft.com などの非フェデレーションドメインアカウントでの直接ログイン ）でも再現する状況であることを確認しております。

本件は現在 Microsoft へ調査を依頼しております。

ご不便ををおかけしており恐れ入ります。
引き続き状況に変化があり次第情報を更新してまいります。

-----------------------------------------------

We have confirmed an issue where accessing Microsoft 365 (Outlook on the web) from iOS or Android browsers causes a login loop, preventing normal access.

We have verified the following details regarding this issue:

It occurs not only on HENNGE Secure Browser but also on other browsers such as Safari and Google Chrome.

It can also occur even when not logging into Microsoft 365 via HENNGE Access Control (e.g., when logging in with non-federated domain accounts such as *.onmicrosoft.com).

We have escalated this issue to Microsoft and requested an investigation.

We sincerely apologize for any inconvenience this may cause. We will continue to provide updates as the situation progresses.
Oct 1, 18:39 JST

Oct 1, 2026

Sep 30, 2026

No incidents reported.

Sep 29, 2026

No incidents reported.

Sep 28, 2026

No incidents reported.

Sep 27, 2026

No incidents reported.

Sep 26, 2026

No incidents reported.

Sep 25, 2026

No incidents reported.

Sep 24, 2026

No incidents reported.

Sep 23, 2026

No incidents reported.

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