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Nucor has revealed they were victim of a data breach

Timing: Incident disclosed in May 2025

Impact:
- Some data was exfiltrated, but details unknown

Attack:
- Attacker is unknown

Remediation:
- Notified law enforcement
- Hired external cybersecurity experts to investigate
- Is reviewing and evaluating impacted data

#cybersecurity #Nucor #databreach

https://www.bleepingcomputer.com/news/security/steel-giant-nucor-confirms-hackers-stole-data-in-recent-breach/

#Steel giant #Nucor confirms hackers stole data in recent breach

https://www.bleepingcomputer.com/news/security/steel-giant-nucor-confirms-hackers-stole-data-in-recent-breach/

#DataBreach #cybersecurity #privacy

American steel giant #Nucor confirms data breach in May attack
https://securityaffairs.com/179247/data-breach/american-steel-giant-nucor-confirms-data-breach-in-may-attack.html
#securityaffairs #hacking

Nucor shares climbed after the U.S. steelmaker raised its Q2 earnings outlook above Wall Street forecasts, while Steel Dynamics fell on weaker-than-expected guidance.
#YonhapInfomax #Nucor #SteelDynamics #EarningsPerShare #Q2Guidance #StockPriceMovements #Economics #FinancialMarkets #Banking #Securities #Bonds #StockMarket
https://en.infomaxai.com/news/articleView.html?idxno=68268

NUCOR - May 13, the biggest steel manufacturer in the US filed an 8-K with the SEC reporting that a cybersecurity incident involving "unauthorized third party access to certain information technology systems" had occurred.

Read the 8-K here:https://www.sec.gov/Archives/edgar/data/73309/000119312525119311/d795264d8k.htm

NUCOR subsequently shut down a number of production operations and company also indicated that it is "implementing other containment, remediation, or recovery measures." https://www.theregister.com/2025/05/14/nucor_steel_attack/ #CyberSecurity #CyberAttack #NUCOR #SEC #Security

Nucor, the biggest steel manufacturer in North America, has shut down some of its operations due to a "cybersecurity incident."

#Nucor #US #cybersecurity #steel

https://cnews.link/nucor-halts-production-after-cybersecurity-incident-1/

#Steel giant #Nucor Corporation facing disruptions after cyberattack

https://www.bleepingcomputer.com/news/security/steel-giant-nucor-corporation-facing-disruptions-after-cyberattack/

#cybersecurity

Steel Manufacturer Nucor Halts Some Production https://expage.net/business/steel-manufacturer-nucor-halts-some-production/ #news #Nucor

North America's largest steelmaker hit by a cyberattack—forcing major production shutdowns and shining a spotlight on industrial vulnerabilities. What does this mean for the future of cybersecurity in heavy industry?

https://thedefendopsdiaries.com/nucor-corporations-cyberattack-lessons-and-future-strategies/

#cybersecurity
#industrialsecurity
#nucor
#cyberattack
#operationaltechnology