アルプスアルパイン株式会社Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- April 27, 2026
- Severity
- BIncidents centered on names and contact details.
- Scale
- Unknown
- Main impact
- The company announced the incident was linked to unauthorized access to a contractor's VPN system and that some of the company's servers were also affected. Public materials do not currently state whether any data was actually exfiltrated or the scope of the impact.
- Information involved
- Email addressUser / member IDFull name
- Cause / key point
- The cause is under investigation.About Supply chain attacks (via vendors & shared services)
- Industry
- Manufacturing
- Listing / capital
- Listed company東証プライム 6770(アルプスアルパイン)
- Last updated
- October 20, 2026
Stock price reaction to the disclosureアルプスアルパイン / 東証プライム 6770
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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: Supply chain attacks (via vendors & shared services)(Compromising the provider instead of the user)
Read the Supply chain attacks (via vendors & shared services) guide and national trends →