株式会社イープラス（イープラス／スマチケ）Data breach / unauthorized access incident
- Occurred on
- September 11, 2026
- Announced on
- September 29, 2026
- Severity
- AFinancial and HR records — information that easily translates into monetary damage.
- Scale
- 1,463 records
- Main impact
- Information of 1,463 applicants for refunds of electronic tickets “スマチケ” was leaked; it includes names, email addresses, bank transfer account information, addresses, etc., posing risks of financial loss and identity fraud.
- Information involved
- Email addressCard & payment dataHome addressFull name
- Cause / key point
- Unauthorized third-party access to the system that manages refund information.
- Industry
- Retail & e-commerce
- Listing / capital
- UnlistedParent company: リクルートホールディングス(東証プライム 6098)
イープラス is a subsidiary of リクルートホールディングス.
- Sources
- Last updated
- October 20, 2026
Stock price reaction to the disclosureリクルートホールディングス・親会社 / 東証プライム 6098
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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 →