Casa Andina Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Casa Andina was listed by thegentlemen ransomware group on April 19, 2026, with internal files reported as exfiltrated in the attack. An undisclosed number of people may be affected; check whether your information was involved and take appropriate protective steps.
What happened
The incident came to light through a listing on thegentlemen's leak site on the reported date. The entry describes the exfiltration of internal files in connection with a ransomware operation targeting Casa Andina. No confirmation of the listing's accuracy has been issued by the company, and details such as the date of the intrusion, the method of access, or the scale of the operation are not disclosed in the available information.
Who is thegentlemen?
Thegentlemen is a ransomware group that maintains a leak site where it lists organizations from which it claims to have obtained data. Such groups typically combine encryption of victim systems with the threat of publishing stolen files if ransom demands are not met. The listing of Casa Andina constitutes the group's claim regarding this incident; independent verification of the claim has not been reported.
Who is Casa Andina?
Casa Andina SAS operates as a hardware and construction materials distributor based in Pasto, Nariño, in south-western Colombia. The company supplies both wholesale and retail customers with products including plumbing, drainage systems, drywall, carpentry materials, paints, ceramics, and chemical construction items. It employs between 51 and 200 people and provides nationwide delivery across Colombia.
What data was at risk
The listing refers to internal files that were allegedly exfiltrated. The precise categories of information contained in those files have not been disclosed. Organizations in the construction materials sector commonly hold records related to suppliers, customers, inventory, financial transactions, and employee information, but whether any of these specific types were involved remains unconfirmed.
What's at stake
Exposure of internal files can reveal operational details that affect business relationships and competitive positioning. For individuals whose information appears in such files, potential consequences include targeted phishing or misuse of contact and account data. The company faces the task of assessing the scope of the exfiltration and determining any notification or remediation requirements under applicable regulations.
What to do if you're exposed
Individuals concerned about possible exposure should monitor their accounts for unusual activity and consider changing passwords for any services linked to the affected organization. Enabling multi-factor authentication on important accounts provides an additional layer of protection. Readers can run a free exposure scan of their email address to check whether their information appears in known breach data sets.
AICompiled with AI assistance from public sources and published under our editorial standards.
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Publicly posted by thegentlemen — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.