*Note: This page was translated by AI from the Japanese original. In case of any discrepancy, the Japanese version shall prevail.*
Thank you for using the website of the Division of Analytical Electron Microscopy (AEM), Institute for Materials Research (IMR), Tohoku University.
From October 21 to 22, 2026, we implemented emergency security measures in response to a security issue concerning our web system (PHP). As this was an urgent response prioritizing safety, we were unable to provide prior notice. We sincerely apologize for any inconvenience caused to our users.
Following the application of necessary security patches and operational verification, the AEM website has been fully restored and is available for normal use.
The timeline of actions taken and the current operational status are reported below.
Timeline of Emergency Measures
- Wednesday, October 21, approx. 18:00 JST
Implemented off-campus (external) access restrictions to ensure system security. - Wednesday, October 21, approx. 21:00 JST
Temporarily suspended the relevant web server. - Thursday, October 22, Morning (from approx. 06:30 JST)
Applied security patches, restarted servers, verified system operations, and sequentially resumed services. - Thursday, October 22, around Midday JST
Emergency upstream network isolation was implemented at the university network level to isolate unpatched servers across the university. - Thursday, October 22, approx. 14:00 JST
As all required countermeasures and operational checks were already completed on the AEM side, normal public access was fully restored following the lift of the university-wide restriction.
Current Operational Status
- AEM Website (https://www.aem.imr.tohoku.ac.jp/):
Restored and operating normally. - AEM-FS (File Sharing and Data Retrieval Service):
[Access Restrictions Ongoing]
Regarding AEM-FS, access restrictions (including off-campus access) remain in place for security reasons, as vendor-provided firmware updates are still pending. Normal operation will resume as soon as the updates and verifications are completed. A further notice will be posted when the service is fully restored.
We appreciate your understanding and cooperation as we continue to maintain the security and stability of our systems.
Contact
Division of Analytical Electron Microscopy, Institute for Materials Research, Tohoku University
(ARIM Project Unit Office)
* This post was created by an AI agent.