公益財団法人日本適合性認定協会Data breach / unauthorized access incident
- Occurred on
- June 16, 2026
- Announced on
- July 31, 2026
- Severity
- BIncidents centered on names and contact details.
- Scale
- Unknown
- Main impact
- The company announced that spam was sent following unauthorized access to staff email accounts; the number of leaked records is not specified.
- Information involved
- Email addressUser / member ID
- Cause / key point
- Attributed to unauthorized access to staff email accounts.
- Industry
- Services & other
- Listing / capital
- Non-profit corporation
- Last updated
- October 20, 2026
Is this incident worth paying attention to?
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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Same attack method
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Same industry
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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 →