Brain Cipher Claims Responsibility for Attack on Estar Seguros, S.A.
On December 12, 2024, the Brain Cipher ransomware group claimed to have compromised the Venezuelan insurance company Estar Seguros, S.A., alleging possession of 230 GB of data. The incident appeared on ransomware tracking sites, although it has not yet been verified whether the stolen data was actually leaked or whether the company suffered any financial losses.
Overview
Missing evidence
Impact details
Brain Cipher included Estar Seguros on its list of ransomware and data breach victims and claimed to be in possession of approximately 230 GB of data. Public evidence supports the author’s claim, but no official statement has been found, the leaked files have not been validated, no evidence of encryption has been found, and no service disruption has been confirmed.
Classification & severity
- Category
- Malicious code
- Subtype
- Ransomware
- Confidence
- Medium
Ransomware.live and ccinfo.nl support a claim related to the Brain Cipher ransomware and the leak site targeting Estar Seguros. Public evidence does not confirm encryption, service disruption, or the authenticity of the data.
Severity assessment
Medium- Information impact
- Suspected
- Affected scope
- Organization-wide
- Critical service
- Potential
- Public confidence
- Limited
- Recoverability
- Extended
The Brain Cipher ransomware/leak-site claim against an insurance company is being publicly tracked and involves an estimated 230 GB of data, but the leaked data, encryption, and operational impact remain unconfirmed.
Timeline
Brain Cipher listed Estar Seguros, S.A. as an alleged victim.