Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Incidents

Data Exposed in Seiko Ransomware Attack

October 26, 2023
Reading Time: 3 mins read
in Incidents

Japanese watchmaker Seiko has revealed that it fell victim to a Black Cat ransomware attack earlier this year, leading to a significant data breach that exposed sensitive information from customers, partners, and personnel.

Following an investigation, Seiko confirmed that around 60,000 “items of personal data” from its ‘Group’ (SGC), ‘Watch’ (SWC), and ‘Instruments’ (SII) departments had been compromised in the attack. On August 10, 2023, the company reported unauthorized access to one of its servers on July 28, 2023. The BlackCat/ALPHV ransomware gang added Seiko to its extortion site on August 21, claiming to have stolen production plans, employee passport scans, technical schematics of watches, and more.

The information leaked in this breach included customer details such as names, addresses, telephone numbers, and email addresses from Seiko Watch Corporation (SWC), contact information for business transactions with SGC, SWC, and SII, and data provided by job applicants and personnel, including names, addresses, phone numbers, email addresses, and educational background.

However, the breach did not expose credit card information. Seiko has responded by collaborating with cybersecurity experts to strengthen its IT systems, assess the breach’s root causes, and implement targeted security enhancements to prevent similar incidents in the future. They have also committed to individually notifying affected customers, personnel, and business partners of the breach.

References:

  • Regarding Our Recent Data Breach (Third Report)
Tags: 2023BlackCatCyber incidentCyber Incidents 2023CyberattackCybersecurityData BreachIncidents 2023JapanRansomwareRansomware AttackSeikoSensitive datasensitive informationVulnerabilities
ADVERTISEMENT

Related Posts

Indian Bank Transfer Records Exposed

Indian Bank Transfer Records Exposed

September 26, 2025

Chinese Cyberspies Hit US Defense Firms

September 26, 2025
Indian Bank Transfer Records Exposed

Neon App Shuts Down After Data Leak

September 26, 2025
Morrisroe UK Company Hit By Cyber Attack

Boyd Gaming Reports Data Breach After Attack

September 24, 2025
Morrisroe UK Company Hit By Cyber Attack

Morrisroe UK Company Hit By Cyber Attack

September 24, 2025
Morrisroe UK Company Hit By Cyber Attack

GeoServer Flaw Breaches US Agency Network

September 24, 2025

Latest Alerts

Fake PyPI Login Site Steals Credentials

Google Warns of BRICKSTORM Malware

Hidden WordPress Backdoors Create Admins

Hackers Target AWS and Steal Credentials

SonicWall SMA100 Update Removes Rootkit

BadIIS Malware Spreads Via SEO Poisoning

Subscribe to our newsletter

    Latest Incidents

    Indian Bank Transfer Records Exposed

    Chinese Cyberspies Hit US Defense Firms

    Neon App Shuts Down After Data Leak

    Boyd Gaming Reports Data Breach After Attack

    Morrisroe UK Company Hit By Cyber Attack

    GeoServer Flaw Breaches US Agency Network

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial