The Yamanashi Nichinichi Shimbun
- Aliases / services
- The Yamanashi Nichinichi Shimbun / 株式会社山梨日日新聞社 / 山梨日日新闻社
- Official website
- https://www.sannichi.co.jp/
Sources identifying the operating company
Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.
Response status by service
Sannichi YBS career guidance
- Response status
- Not listed
- Response information checked
- 2026-10-30
Current re-audit: Related incident verified; PHP connection not stated · Research date: 2026-10-30
On October 23, 2026, the career-guidance service confirmed that 4,433 members’ names and email addresses leaked through blastmail. Mailings were suspended pending safety checks. No intrusion into, or leak from, the career-guidance website itself was found.
Scope: A PHP connection and response to the current PHP vulnerabilities are not listed.
What users should do
Delete suspicious messages without opening links or attachments; verify through official channels.
Official service URL
Source URLs
- 2026-10-23 Official Sannichi YBS career guidance noticehttps://www2.sannichi.co.jp/GUIDANCE/2028/info/cd/90001/seq/12Service and operation documentation
Sannichi Work newsletter
- Response status
- Not listed
- Response information checked
- 2026-10-30
Current re-audit: Related incident verified; PHP connection not stated · Research date: 2026-10-30
In its October 2026 notice, Sannichi Work says the mailing vendor notified it on October 23 of leakage affecting 607 newsletter members: email, birth year and gender. This service and these fields are separate from the 4,433 career-guidance members.
Scope: A PHP connection and response to the current PHP vulnerabilities are not listed.
What users should do
Delete suspicious messages without opening links or attachments; verify through official channels.
Official service URL
Source URLs
- Sannichi Work newsletter disclosurehttps://www2.sannichi.co.jp/KYUJIN/Service and operation documentation
Related official sources
- 2026-10-23 Official Sannichi YBS career guidance noticeOfficial notice; link to this PHP incident unconfirmedConfirms scope, chronology and user guidance.
- Sannichi Work newsletter disclosureOfficial notice; link to this PHP incident unconfirmedConfirms separate-service fields and count.
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