ニッポンレンタカーアプリ（ニッポンレンタカーサービス株式会社）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- September 26, 2026
- Severity
- AFinancial and HR records — information that easily translates into monetary damage.
- Scale
- 41 people
- Main impact
- Unauthorized access to the ニッポンレンタカー app may have exposed 41 members' information (names, phone numbers, email addresses, login IDs, usage history, reservation information). For members who registered driver's license information or the last four digits of credit card numbers and cardholder names, those may also have been viewed.
- Information involved
- Email addressUser / member IDCard & payment dataIdentity verification dataPhone numberHome addressFull nameDate of birth
- Cause / key point
- Confirmed that member information was improperly viewed due to unauthorized access by a third party.
- Industry
- Transport & travel
- Listing / capital
- UnlistedListed company within the group.: トヨタ自動車(東証プライム 7203)
ニッポンレンタカー is part of the Toyota Group.
- Sources
- Last updated
- October 20, 2026
Stock price reaction to the disclosureトヨタ自動車・グループ上場会社 / 東証プライム 7203
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
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: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)
Read the Unauthorized access (method undisclosed) guide and national trends →