スカパーJSAT（スカパー!メンバーズ）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- October 13, 2026
- Severity
- CLimited data such as email addresses and identifiers.
- Scale
- Unknown
- Main impact
- They disclosed that member email addresses used for some スカパー！メンバーズ promotional emails may have been leaked. The number of affected records was not disclosed.
- Information involved
- Email address
- Cause / key point
- Caused by unauthorized access to IDCフロンティア's cloud infrastructure used by part of the external email delivery service.
- Industry
- Media & entertainment
- Listing / capital
- Listed company東証プライム 9412(スカパーJSAT)
- Last updated
- October 20, 2026
Stock price reaction to the disclosureスカパーJSAT / 東証プライム 9412
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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: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)
Read the Unauthorized access (method undisclosed) guide and national trends →