日本スウェージロックFSTData breach / unauthorized access incident
- Occurred on
- March 10, 2026
- Announced on
- March 11, 2026
- Severity
- SCompromise of deep personal data or usable credentials.
- Scale
- Unknown
- Main impact
- From March 10, phones, email, and FAX were unavailable, halting all operations such as order processing and shipping. They have disclosed being affected by ransomware.
- Information involved
- Email addressPhone number
- Cause / key point
- The cause is under investigation.About Ransomware
- Industry
- Manufacturing
- Listing / capital
- Unlisted
- 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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Incidents related to "fax"
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Same attack method
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- Aイズミ（ゆめオンライン・ゆめデリバリー）2026.10.14 announced・Affected 400,000 records
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Same industry
- SS精電舎電子工業2026.07.21 announced・Affected Unknown
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- S新エフエイコム(岡谷鋼機グループ)2026.07.21 announced・Affected Unknown
- S三浦工業2026.05.18 announced・Affected 5,021 records
- S東山産業株式会社2026.05.12 announced・Affected Unknown
Attack method classification: Ransomware(Encrypting data and demanding a ransom)
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