インテリックス（ジャストカーテン）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- January 26, 2026
- Severity
- SCompromise of deep personal data or usable credentials.
- Scale
- 60,663 people
- Main impact
- Card information for 10,423 individuals and customer information for 60,663 individuals may have been exposed. The customer information is said to include email addresses and passwords.
- Information involved
- Email addressPasswordCard & payment dataPhone numberHome addressFull nameDate of birth
- Cause / key point
- Tampering of the payment application via unauthorized access exploiting vulnerabilities in parts of the system.About Exploitation of vulnerabilities
- Industry
- Retail & e-commerce
- Listing / capital
- Listed company東証スタンダード 463A(インテリックスホールディングス)
- Last updated
- October 20, 2026
Stock price reaction to the disclosureインテリックスホールディングス / 東証スタンダード 463A
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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: Exploitation of vulnerabilities(Breaking in through holes in software and devices)
Read the Exploitation of vulnerabilities guide and national trends →