Skip to content
JAENES
SPossible leakAugust 27, 2026 announced

CINRA, Inc.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
Unconfirmed
Announced on
August 27, 2026
Severity
SCompromise of deep personal data or usable credentials.
Scale
21,508 people
Main impact
Operator credentials were obtained by exploiting a vulnerability and unauthorized access was confirmed; therefore information of 21,508 CINRA JOB members and former members may have been exposed. Actual viewing or retrieval has not been confirmed in the final report.
Information involved
Email addressAuth tokenPhone numberHome addressFull nameDate of birth
Cause / key point
Unauthorized access via operator credentials obtained by exploiting a vulnerability has been confirmed.About Exploitation of vulnerabilities
Industry
Media & entertainment
Listing / capital
Unlisted
Last updated
October 20, 2026
Email addressAuth tokenPhone numberHome addressFull nameDate of birthHow severity is assessed →

Is this incident worth paying attention to?

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

Related incidents

Browse the database →

Incidents sharing the same company, service, attack method or industry (grouped automatically from the disclosures).

← Back to Breach Watch