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Brain Cipher and Nitrogen Ransomware Groups Claim Attacks on Companies

First seen 23 Oct 2026, 18:46 UTC • •
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ThreatCluster AI
ThreatCluster •October 23, 2026 at 20:43 UTC
  • •Brain Cipher claims to hold 13,000 documents from Sodali & Co, affecting corporate governance.
  • •Nitrogen ransomware claims to have attacked Walbro, a manufacturer of engine-management systems.
  • •Both claims remain unverified, with no confirmation from the affected companies.

The Brain Cipher ransomware group has claimed an attack on Sodali & Co, stating it holds 13,000 documents, including sensitive corporate governance materials. This claim has not been verified, and Sodali & Co has not confirmed any incident. Separately, the Nitrogen ransomware group has listed Walbro on its leak site, claiming to have compromised the company, which has also not confirmed any incident. Both claims remain unverified, and no data samples have been provided. If true, the attacks could expose sensitive data, increasing risks of insider threats and phishing. Currently, both incidents are assessed as unverified threat-actor claims.

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Timeline

2026-10-22
Brain Cipher claims attack on Sodali & Co
The group claims to have 13,000 documents, including sensitive corporate materials. No verification or confirmation from Sodali & Co.
Article 1
2026-10-23
Nitrogen claims attack on Walbro
Nitrogen ransomware group lists Walbro on its leak site, claiming a data breach. No data samples or confirmation from Walbro.
Article 2

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Extracted Entities (5)

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Common questions

What data is claimed to be compromised?
Brain Cipher claims to have 13,000 documents related to corporate governance from Sodali & Co, while Nitrogen claims to have data from Walbro.
Have the companies confirmed these incidents?
No, both Sodali & Co and Walbro have not publicly confirmed any incidents related to these claims.
What should organizations do in response?
Organizations should monitor for any unusual activity and prepare for potential phishing attempts related to these claims.