Nucor Shuts Down Production After Cyberattack
CITY – July 18, 2024 – Steel manufacturer nucor has halted production after a recent cybersecurity incident. The Charlotte, N.C.-based company announced the temporary suspension of operations at select locations, citing “unauthorized third party access” as the cause. While the full extent of the damage is yet unknown, Nucor is actively working to restore operations and has not specified which facilities were affected, according to the press release. For more information, check back later.
Nucor Shuts Down Some Production After Cyberattack
Nucor, the Charlotte, N.C.-based steel giant, has temporarily suspended production at select locations following a recent cybersecurity incident.The company is actively working to restore operations.
Details of the Incident
In a filing with the Securities and Exchange Commission (SEC), Nucor revealed that the incident involved unauthorized third party access to certain information technology systems.
the company did not provide further details about the nature of the attack.
Immediate Response
Nucor stated that it began promptly taking steps to contain and respond to the incident, including activating its incident response plan, proactively taking perhaps affected systems offline and implementing other containment, remediation, or recovery measures.
Did you know? Nucor operates approximately 300 locations, including recycling centers and large manufacturing plants.
While Nucor has not identified the specific facilities impacted, the production halt was implemented in an abundance of caution.
Nucor’s Scale and Impact
Nucor, which calls itself North America’s largest steel manufacturer and recycler,
reported $7.83 billion in sales for the first quarter of 2025. The company employs approximately 25,000 people and is considered one of the top 20 steel producers globally.
Ongoing Projects
One of Nucor’s major undertakings is a $3 billion facility currently under construction in West Virginia.
Cybersecurity Threats to Manufacturers
Large manufacturing companies face constant cyber threats,ranging from financial cybercrime to intellectual property theft and nation-state espionage.
Recent Cyberattacks on Manufacturers
Nucor joins a growing list of manufacturers recently targeted by cyberattacks. Other companies that have reported cybersecurity incidents in SEC filings include:
- Masimo, a medical technology company
- Sensata Technologies, an industrial sensor maker
- National Presto Industries, a home appliance company
- Microchip Technology, a semiconductor firm
Pro Tip: Manufacturers should regularly update their cybersecurity protocols and train employees to recognize and report potential threats.
This trend extends globally, with industrial firms in the united Kingdom and Switzerland also reporting cybersecurity incidents in the past year.
