Seiko USA hit by cyberattack
Incident
Summary
Hide ▲
Show ▼
The Seiko USA website was defaced, replacing normal content with a ransom message that raised the risk of customer-data exposure. Attackers claimed they had breached the company's Shopify backend and stolen the customer database. They threatened to leak the data unless Seiko USA paid a ransom, while the underlying theft claim remained unconfirmed.
Related Happenings
Seiko USA Shopify customer database leak claim
Data Leak
First: 20.04.2026 21:22
Last: 20.04.2026 21:22
Sources 1
How related:
The message warned that attackers had gained access to the company's Shopify backend and exfiltrated sensitive customer information.
About this happening:
**Seiko USA** faced a claimed **customer data leak** after attackers defaced its website and said they had stolen the company’s **Shopify customer database**. The alleged exposure...
Seiko USA Shopify customer database leak claim
Data LeakHow related: The message warned that attackers had gained access to the company's Shopify backend and exfiltrated sensitive customer information.
About this happening: **Seiko USA** faced a claimed **customer data leak** after attackers defaced its website and said they had stolen the company’s **Shopify customer database**. The alleged exposure...
Timeline
-
20.04.2026 21:22 2 articles · 1mo ago
Seiko USA website defaced with Shopify data-theft extortion message
Initial DisclosureSeiko USA's website was defaced with a "HACKED" page in the "Press Lounge" section that replaced normal content with a ransom demand and data-breach notice. The message claimed attackers breached Seiko USA's Shopify backend, downloaded the entire customer database, and would publish the data unless Seiko USA entered negotiations within 72 hours.
Show sources
- Seiko USA website defaced as hacker claims customer data theft — www.bleepingcomputer.com — 20.04.2026 21:22
- Seiko USA website defaced as hacker claims customer data theft — www.bleepingcomputer.com — 20.04.2026 21:22