Overview
Customer headcounts use “about” wording in both notices → count blank (second notice: about 4.4M customers; about 220k with bank-transfer fields; about 40k agencies listed separately and not summed). My Number, cards and email stated out of scope.
Timeline
- Occurred
- Discovered
- Disclosed
Organization response
Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.
What you can do
Be wary of emails, SMS or calls impersonating the organisation; do not open links or attachments or enter passwords or card details. Change reused passwords on other services.
Sources
- 当社システムに対する不正アクセスの発生および情報漏えいに関するお詫びとお知らせアフラック生命保険株式会社 · 2026-11-09
- 当社システムに対する不正アクセスの発生および情報漏えいに関するお詫びとお知らせ（第二報）アフラック生命保険株式会社 · 2026-11-09