Zermelo

Global hosting

Aliases / services: Zermelo / Zermelo Software B.V. / Zermelo Software BV / zermelo.nl
Official website: https://zermelo.nl/

Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.

Response status by service

Portal, Desktop and support

Response status: Portal unaffected; support restored
Response information checked: 2026-10-27 Rechecked: 2026-10-27

Portal and Desktop do not use PHP and were unaffected. Supporting systems, including the manual, were temporarily taken offline as a precaution and restored in stages; the last returned at 09:22 on October 22.

What users should do

Use Portal, Desktop and online manuals normally.

Official service URL

https://zermelo.nl/

Source URLs

Zermelo: PHP responsehttps://support.zermelo.nl/news/posts/zermelo-portal-onaangetast-door-beveiligingsprobleem-phpResponse evidence

Related official sources

Zermelo: PHP responseOfficial notice
Zermelo: Operator informationOfficial information directory