Multiple remediation outcomes were recorded depending on the root cause. For hostname mismatches, access succeeded when users switched to the certificate‑matched domain (e.g., removing the www prefix). Expired public certificates were worked around by using an alternate valid domain while email templates and public links were scheduled to be updated. Internal repository certificate issues were resolved by submitting a CSR, obtaining specialist approval, completing certificate provisioning, and activating the domain. A wildcard certificate for *.iu.org was renewed, a new ca‑bundle was created, and the new certificate and ca‑bundle were delivered to named system owners on 2025-01-03 with follow-up requests for replacement on their systems (follow-up noted on 2025-01-14; no confirmation was recorded in the ticket). A separate outage where modern browsers could not reach https://redmine-se.iubh.de was diagnosed as a legacy/unpatched server presenting TLS 1.0/1.1, weak cipher suites and an OpenSSL implementation vulnerable to CVE-2016-2107; the ticket captured the security and protocol findings and identified vendor/legacy server involvement (no remediation was recorded in the ticket).

Two distinct outcomes were observed: the SharePoint/document security warnings were escalated to Microsoft Support and were resolved by a Microsoft service‑side fix (noted in Microsoft 365 Service Health). The Viva Goals login warnings were transient and cleared without configuration changes after approximately two days; a temporary browser 'Advanced → Proceed' bypass had been used by some users during the outage.

For the Visual Studio AMPscript extension a repository and community resources were located and the extension source/code was reviewed; no security‑related issues were identified in that assessment. For an externally provided verification plugin (.exe) the download domain and link were reviewed and the binary was scanned with Windows Defender; the scan did not flag malware and the site/link was assessed for legitimacy based on available information.

A host investigation and screenshot review determined the folder was most likely created by an accidentally downloaded webpage or was a known Microsoft bug affecting some clients. No evidence of malicious activity was found and the item was classified as non‑malicious; the user was advised that the folder could be deleted or ignored.

Investigation traced the affected DNS A records to a third‑party host (Dogado, IP 31.47.247.109). DNS entries were temporarily removed during analysis and then restored when still required. The responsible team evaluated the finding and took a 'Won't Do' decision; no configuration changes were applied to validate the Host header or alter the redirects.

A presented Kentix RFID transponder (B119) was registered in the Kentix system and the issuance recorded in the Kentix Excel list. Temporary Flexdesk access was granted by issuing physical badge number 12 for the requested period; entries were logged and the tasks were closed as completed.