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MS&AD insurers' breach total passes 1 million records
The Japanese group's count of affected records has grown past one million.
- Organisation
- MS&AD Insurance Group
- Disclosed
- 9 November 2026
- Affected
- 1,010,000
- Data
- Names, addresses, phone numbers, vehicle details, assistance records; business contact data
- Attacker
- Unknown
- Severity
- major
- Region
- Global
- Source
- eSecurity Planet ↗
Cite this
Nuffield Consulting, “MS&AD insurers' breach total passes 1 million records”, The Daily Tech Wire outage & breach log, 9 Nov 2026. https://techwire.nuffieldconsulting.com/incidents/2026-11-09-msad-insurance-group-breach/ (retrieved 15 Nov 2026).
This entry summarises public reporting. Please also cite the original source: eSecurity Planet, https://www.esecurityplanet.com/threats/news-msad-data-breach-japan-1-million-records-apac/.
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