Sheng Yu Steel Co.

Sheng Yu Steel Co., also known by its Chinese name 盛餘股份有限公司, is a steel manufacturing enterprise headquartered in Taiwan.
The company operates under the aliases Sheng Yu Steel Co. and 盛餘股份有限公司 in official records.
Its core business centers on the production and supply of steel products for industrial and construction applications.
As a steel producer, it serves markets that require raw material inputs for manufacturing and infrastructure projects.

On March 30, 2025, Sheng Yu Steel Co. was targeted by a hacker attack that deployed viruses across its internal network. The malicious code succeeded in compromising a subset of hosts and computers within the organization’s IT environment.
Detection occurred through the company’s security monitoring systems, which flagged anomalous activity consistent with the virus deployment.
The compromise was confined to specific workstations and servers, with no indication of spread to critical production control systems. No evidence emerged that the attackers exfiltrated proprietary data during the incident.

Upon confirmation of the infection, Sheng Yu Steel Co.’s internal security team activated its defense mechanisms and initiated backup operations to safeguard data.
The company concurrently engaged external IT professionals with expertise in incident response to assist with containment and eradication. Joint efforts resulted in the isolation of affected systems and the removal of the malicious software from the network.
Throughout the response, the security team verified that the attack caused no significant operational disruption to steel manufacturing processes.
The company also affirmed that no personal information or confidential data was leaked as a result of the breach.
After the incident was resolved, Sheng Yu Steel Co. implemented security improvements and is strengthening its network and infrastructure controls to enhance resilience against future threats.