Everest Hacking Group Claims Breach of Nissan Motors

What happened

Everest hacking group claims breach of Nissan Motors after the cybercrime collective publicly alleged it accessed and exfiltrated approximately 900 GB of data from Nissan Motor Co., Ltd. The claim, posted on the group’s platforms, suggests broad access to internal systems and repositories at the Japanese automaker. While details about the nature of the stolen data or the intrusion vector have not been independently confirmed, the volume claimed signals a substantial potential compromise of corporate information. The Everest group has previously claimed high-profile targets in multiple sectors and uses public disclosures as part of its extortion tactics. 

Who is affected

Nissan Motor Co., Ltd. and its partners could face direct exposure of corporate and technical data; automotive industry stakeholders and suppliers may face indirect risks if shared systems or credentials are involved.

Why CISOs should care

Allegations of large-scale data exfiltration against a major global manufacturer highlight persistent risks of ransomware and data theft campaigns targeting industrial and supply chain environments.

3 practical actions

• Verify claim details: Confirm scope and authenticity of the alleged breach with internal forensics.
• Strengthen access controls: Review and tighten privileges and network segmentation to limit lateral movement.
• Monitor threat actor activity: Track intelligence on Everest group and related ransomware operations.