NTTソルマーレ（コミックシーモア）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- October 15, 2026
- Severity
- SCompromise of deep personal data or usable credentials.
- Scale
- Unknown
- Main impact
- A data leak at コミックシーモア has been confirmed; affected data include email addresses, hashed passwords, birthdates, gender, and nicknames, with the number of records under investigation. Card information is not held in the affected system and was not leaked.
- Information involved
- Email addressPasswordDate of birth
- Cause / key point
- Cause under investigation.
- Industry
- Media & entertainment
- Listing / capital
- UnlistedParent company: NTT(東証プライム 9432)
NTTソルマーレ is a subsidiary of NTT.
- Last updated
- October 20, 2026
Stock price reaction to the disclosureNTT・親会社 / 東証プライム 9432
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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: Under investigation / not stated(Cause not disclosed)
Read the Under investigation / not stated guide and national trends →