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JAENES
BPossible leakNovember 6, 2026 announced

日産フィナンシャルサービスData breach / unauthorized access incident

笹尾 祐太朗の写真Reviewed by Yutaro SasaoWritten by Leak Watch editorial team published ・ updated
Occurred on
October 29, 2026
Announced on
November 6, 2026
Severity
BIncidents centered on names and contact details.
Scale
236,000 records
Main impact
Due to unauthorized access to a contractor's business system, up to approximately 236,000 customer records may have been leaked, including names, addresses, phone numbers, email addresses, vehicle information, and accident or breakdown reception histories. 日産フィナンシャルサービス's own systems have not been announced as compromised.
Information involved
Email addressPhone numberHome addressFull name
Cause / key point
Suspected data exfiltration caused by unauthorized access to a contractor's business system.About Supply chain attacks (via vendors & shared services)
Industry
Finance & insurance
Sources
Last updated
November 8, 2026

Stock price reaction to the disclosure日産自動車・親会社 / 東証プライム 7201

2026.10.17 〜 2026.11.08Loading…

Stock information is reference data based on Yahoo Finance and may be delayed. This site does not solicit or advise investment and does not guarantee the accuracy or completeness of this information. We accept no liability for any investment decision based on it.

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Written & reviewed

笹尾 祐太朗の写真

Reviewed byYutaro SasaoFounder & CEO, MediaLeap Inc.

CEO of MediaLeap Inc. Working on both sides of web advertising and web media since 2013; founded the company in May 2025.

Review scope: cross-checking against primary sources (official and government announcements), verifying claims stay within the facts, and checking source attribution。Last reviewed:

Written by:Leak Watch editorial team (AI-assisted drafts verified against sources by the editorial team) · Reviewer profile · Request a correction

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Attack method classification: Supply chain attacks (via vendors & shared services)(Compromising the provider instead of the user)

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