Zierick Manufacturing Corporation Listed by sinobi Ransomware Group

On October 15, 2025, Zierick Manufacturing Corporation appeared on the leak site of the sinobi ransomware group. The company, founded in 1919 and based in Mount Kisco, New York, designs and manufactures connectors and stamped metal components used throughout the electronics industry. Public reporting indicates that internal files were exfiltrated during a ransomware attack, although the exact number of people whose information may have been exposed remains unknown.

Reported Details of the Breach

Available reporting describes the incident as a ransomware deployment that resulted in both encryption of systems and exfiltration of internal documents. The sinobi group published a listing for Zierick on its dark-web leak portal, a common tactic used to pressure victims into payment. No specific deadline for payment has been publicly confirmed in this case, but such listings typically carry implicit time pressure before additional data is released.

Internal files were taken, though the precise volume and types of records have not been detailed in open sources. Because Zierick supplies parts to electronics manufacturers, the stolen material could include supplier lists, employee records, customer contracts, or design specifications. Ransomware.live, which tracks leak-site activity, listed the company on October 15, 2025.

Why This Matters for You and Your Family

Even when a breach occurs at a manufacturing supplier rather than a consumer-facing website, ordinary families can still be affected. Employee information, vendor contacts, or customer records often contain names, addresses, phone numbers, email addresses, and sometimes Social Security numbers. If your employer, your child’s school, or a company you do business with works with Zierick, your data may have been inside the stolen files.