TKC
- Aliases / services
- 株式会社TKC / TKCグループ / ティーケーシー / TKC
- Official website
- https://www.tkc.jp/
Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.
Response status by service
Affected services for accounting firms, their clients and local governments
- Response status
- Partly reopened; some services suspended
- Response information checked
- 2026-10-27
Current re-audit: Official response verified · Research date: 2026-10-27
Systems for accounting firms, businesses and municipalities.
Most affected services reopened October 23. Some accounting-firm services remain suspended, with affected customers to be informed individually.
Scope: Do not extend the headline's completion claim to every service. No CVE numbers or product-level list is provided.
What users should do
Check individual notices or support for your service's reopening status.
Official service URL
Source URLs
- Service restoration and remaining suspensions after PHP fixeshttps://www.tkc.jp/company/topics/2026/20261023/Response evidence
- https://www.tkc.jp/company/topics/https://www.tkc.jp/company/topics/Service and operation documentation
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