Production at Steelmaker Nucor Disrupted by Cyberattack

American steel giant Nucor on Wednesday disclosed a cybersecurity incident that bears the hallmarks of a ransomware attack.

American steel giant Nucor Corporation (NYSE: NUE) revealed on Wednesday that production has been disrupted due to a cyberattack.

Nucor, which advertises itself as the largest steel manufacturer and recycler in North America, informed the SEC that it recently detected a cybersecurity incident involving unauthorized access to its IT systems.

In response to the incident, the company took some systems offline and implemented other unspecified containment, remediation or recovery measures.

It has also informed law enforcement and called in outside cybersecurity experts to assist with the investigation.

“As of the date of this filing and in an abundance of caution, the Company temporarily and proactively halted certain production operations at various locations,” Nucor explained. “However, the Company is currently in the process of restarting the affected operations.”

The North Carolina-based company has ...