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seiho-contract-lookup-2026 · Disclosed 2026-07-29

生命保険協会: data exposure and authorization boundaries

Specific external operations could expose registered-user data in a contract-lookup system. Potential scope is about 37,000 user records; unauthorized acquisition or use was not confirmed.

Cause unresolved / undisclosed

Outcome: Exposure / potential leak. Third-party theft unconfirmed.

Entry path and evidence

  • Reported fact

    Specific external operations could expose registered-user data in a contract-lookup system.

    [s1]pp.1-2 §§1-3
  • Reported fact

    Potential scope is about 37,000 user records; unauthorized acquisition or use was not confirmed.

    [s1]pp.1-2 §§1-3

Timeline

  1. Disclosure date established by the reviewed notice. [s1]

Reported response

  • Reported fact

    Web applications were suspended pending safety verification and investigation.

    [s1]pp.1-2 §§1-3

Evidence relevant to prevention

Insufficient evidence

Undisclosed entry or patch timing prevents an avoidability assessment. Inspect privileges, retrieval logs, retention and deployed configuration using the linked rules.

Editorial assessment; not a determination of liability. [s1]

Unknowns and AI involvement

AI involvementUnknown

The reviewed disclosures do not establish attacker use of AI.

The exposure window and actual unauthorized viewing scope are not fully established; possible lookup records are not proven exfiltration.

Sources

  1. [s1] 生命保険協会 · Primary source

    生命保険協会：事故に関する公表資料 ↗

    Reviewed 2026-10-09