- What: Seiko USA website defaced and data breach claimed
- Impact: Customer data may have been stolen
Data Security Seiko USA website defaced, customer data breach claimed April 21, 2026 Share By SC Staff (Adobe Stock) According to Bleeping Computer, the Seiko USA website experienced a defacement over the weekend, with attackers claiming to have stolen its Shopify customer database and threatening to leak the information unless a ransom is paid. Visitors to the "Press Lounge" section encountered a "HACKED" page displaying the ransom demand. The attackers asserted they breached Seiko USA's Shopify backend, exfiltrating sensitive customer data including names, email addresses, phone numbers, order history, shipping addresses, and account details. A specific customer account ID, 8069776801871, was cited as the method to initiate contact for ransom negotiations, with a 72-hour deadline issued. Bleeping Computer has not yet confirmed the legitimacy of the claims or identified the threat actors. Seiko USA has since removed the defacement message from its website but has not issued a public statement. Source: Bleeping Computer SC Staff Related Threat Intelligence Multiple other companies purportedly breached by ShinyHunters, over 9M record leak warned SC Staff April 20, 2026 Hacking operation ShinyHunters has claimed to have compromised nine major brands, including fast fashion retailer Zara, convenience store chain 7-Eleven, and cruise line operator Carnival Corporation, while warning that it would release over 9 million records with personally identifiable information and internal data should the demanded ransom remain unpaid by Apr. 21, Cybernews reports. Data Security Payouts King ransomware abuses QEMU for hidden VMs and backdoors SC Staff April 20, 2026 The Payouts King ransomware operation is leveraging the QEMU emulator to create hidden virtual machines and establish reverse SSH backdoors on compromised systems, allowing them to bypass endpoint security measures. Security Operations Express website vulnerability exposed customer order details SC Staff April 20, 2026 The vulnerability allowed unauthorized access to order confirmation pages, revealing customer names, phone numbers, email addresses, postal and billing addresses, and details of purchased items. Related Events Cybercast Beyond the Hype: The Cybersecurity Trends CISOs are Keeping an Eye on in 2026 On-Demand Event Cybercast Beyond the data perimeter: Why next-generation DSPM is the foundation for modern data security On-Demand Event Virtual Conference Securing the Future of Finance: Strategies to Counter Modern Cyber Threats On-Demand Event Get daily email updates SC Media's daily must-read of the most current and pressing daily news Business Email By clicking the Subscribe button below, you agree to SC Media Terms of Use and Privacy Policy . Subscribe Related Terms Bit Block Cipher Ciphertext Cryptographic Algorithm or Hash Data Encryption Standard (DES) Diffie-Hellman Digital Envelope Digital Signature Digital Signature Algorithm (DSA) Digital Signature Standard (DSS) You can skip this ad in 5 seconds