Rhizome
- Aliases / services
- 株式会社リゾーム / Rhizome Ltd. / ITCOLLEGE / ITカレッジ / Rhizome
- Official website
- https://www.rhizo-me.com/
Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.
Response status by service
Corporate website
- Response status
- Patched and reopened
- Response information checked
- 2026-10-27
Current re-audit: Official response verified · Research date: 2026-10-27
System development and engineering training services.
Reopened at 08:00 JST October 22 after fixes and verification; additional October 23 evening maintenance is also reported as ended.
Scope: Limited to rhizo-me.com, not all customer development projects.
What users should do
Use normally and report problems.
Official service URL
Source URLs
- PHP maintenance completed and websites restoredhttps://www.rhizo-me.com/news/20261021/Response evidence
ITCOLLEGE service website
- Response status
- Patched and reopened
- Response information checked
- 2026-10-27
Current re-audit: Official response verified · Research date: 2026-10-27
Explicitly covered by emergency maintenance and the October 22 08:00 JST reopening; October 23 follow-up maintenance also ended.
Scope: The it-college.co.jp information site, separate from the learning platform.
What users should do
Use normally and report problems.
Source URLs
- PHP maintenance completed and websites restoredhttps://www.rhizo-me.com/news/20261021/Response evidence
Learning management system and related services
- Response status
- Unaffected
- Response information checked
- 2026-10-27
Current re-audit: Official response verified · Research date: 2026-10-27
The notice excludes the learning platform and related services from impact and maintenance.
Scope: The notice does not claim PHP is absent; corporate-site patching is separate.
What users should do
Continue normal use.
Source URLs
- PHP maintenance completed and websites restoredhttps://www.rhizo-me.com/news/20261021/Response evidence
Related official sources
- PHP maintenance completed and websites restoredOfficial notice
- Company and operator informationOfficial information directory
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