Steelmaker Nucor said on Wednesday it had halted certain production at various locations after identifying a cyber security incident that involved unauthorized third-party access to certain information technology systems it used.
The Charlotte, North Carolina-based company said it is in the process of restarting the affected operations as it investigates the incident along with external cyber security experts. Nucor has notified federal law enforcement authorities and is taking the potentially affected systems offline, while also implementing other containment, remediation or recovery measures, it said in an SEC filing.
Read more…
Source: Reuters News
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- Iran-linked CyberAv3ngers suspected in attacks on Minnesota water systems
July 29, 2026
Security researchers at Tenable suspect the Iran-linked faux hacktivist outfit CyberAv3ngers was behind the cyberattack that disrupted more than 30 Minnesota water facilities. Neither state-level nor federal officials have made any claims regarding attribution for the attacks, however, Tenable reckons the operational pattern is consistent with the crew’s previous raids, noting the timing relative to recent government warnings. The ...
- Google goes it alone with a new cybercrime crew taxonomy
July 27, 2026
Google has created a new taxonomy to describe cybercrime outfits, seemingly abandoning a Microsoft-led effort to create consistent names. The Big G announced its new schema on Saturday in a post that notes its 2022 acquisition of Mandiant and its subsequent incorporation into a new team called the Google Threat Intelligence Group (CTIG). Now that two have become one, Google reckons ...
- Hugging Face CEO calls for ‘radical transparency’ after ‘unprecedented’ OpenAI hack
July 26, 2026
After OpenAI recently admitted that one of its models had breached the systems of AI platform Hugging Face, Hugging Face’s CEO Clem Delangue posted on X that he was flying to San Francisco to have “a little chat with that ‘rogue agent.’” Then, in a follow-up post on Saturday, Delangue outlined what he’d asked for from OpenAI. He said he called ...
- What the First Autonomous Ransomware Case Confirms
July 24, 2026
Security researchers have documented an AI agent running a full ransomware operation on its own against a live production target, planning, adapting, and executing every step from the first exploit through data destruction. This is early real-world evidence of the shift to autonomous criminal operations that our research forecast. Agent-run attacks change what defenders can rely ...
- CISA has expanded the scope of its alert on Iranian-affiliated hackers attacking critical infrastructure
July 23, 2026
The US Cybersecurity and Infrastructure Security Agency (CISA) has expanded the scope of its alert on Iranian-affiliated hackers attacking critical infrastructure, including water and energy facilities. The original advisory focused on programmable logic controllers (PLCs) manufactured by Rockwell Automation/Allen-Bradley. The update warns that the activity may also target devices from Schneider Electric, Siemens, “and potentially other branded/manufactured PLCs.” The conflict between ...
- Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite
July 23, 2026
A group of Russian state-supported cyber actors has been targeting and compromising various Western government and commercial organizations using the Zimbra Collaboration Suite (ZCS) software since at least July 2025. The Russian state supported advanced persistent threat (APT) group’s activity is tracked in the cybersecurity community under several names (see Cybersecurity industry tracking), primarily as ...