Grupo Roa Listed by tengu Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Grupo Roa was listed by the tengu ransomware group on January 16, 2026, after internal files were exfiltrated in a ransomware attack. Individuals should check whether their information was exposed and take protective steps.
Grupo Roa, a Mexican construction and infrastructure group, was listed on January 16, 2026 by the ransomware operator tengu. The listing states that internal files were exfiltrated during a ransomware attack. No figure for the number of individuals affected has been reported, and the company has not issued a public statement confirming the extent of any data exposure.
Breaking down the breach
The only confirmed detail is the listing itself on the group’s leak site. The entry describes exfiltration of internal files but provides no information on the volume of data, the date of the intrusion, or the encryption of systems. It remains unknown whether the files were published or whether any ransom demand was communicated to the victim. Public reporting has not yet established independent verification of the claims made in the listing.
Who is tengu?
Tengu is a ransomware operator that maintains a public leak site to list organizations it claims to have targeted. Like other groups using similar tactics, it typically combines encryption of victim systems with the removal of data, then uses the threat of publication to pressure payment. The group’s listings are presented as claims by the operator; independent confirmation of each incident varies and is often limited to the appearance of the entry itself.
About Grupo Roa
Grupo Roa is a privately held Mexican company founded on March 30, 1995. It operates in the construction and infrastructure sector, focusing on large-scale projects in southeastern Mexico. Organizations in this sector routinely hold project documentation, engineering records, supplier contracts, employee information, and financial data related to public and private works.
The information in question
The listing refers only to “internal files” without further specification. The precise categories of data, file counts, or time periods covered have not been disclosed. Companies of this type commonly maintain records that include employee personal details, client information, and operational documents; however, the exact contents of any exfiltrated material remain unconfirmed.
Why it matters
Construction and infrastructure firms hold records that can include personal data of employees and partners as well as details of ongoing projects. Exposure of such material can create risks of identity misuse or targeted follow-on activity for individuals, while organizations may face operational disruption and regulatory scrutiny depending on the jurisdiction and the nature of the data. The absence of Reported Details limits precise assessment of impact at this stage.
What to do if you're exposed
Individuals who believe their information may be involved should monitor their financial accounts and official correspondence for unusual activity. Enabling multi-factor authentication on important services and using unique passwords reduces the value of any exposed credentials. Readers can run a free exposure scan of their email address against known breach data to check for prior appearances in public listings.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
More recent breaches
FRUIT-BONTÉ Agroalimentaire Listed by tengu Ransomware GroupDisuelas JC SAS Listed by tengu Ransomware Groupwww.charoenchai.com Listed by tengu Ransomware GroupSileno Companies Inc Listed by tengu Ransomware GroupLatest breaches
Read GalaxyWarden’s full analysis of the Grupo Roa Listed by tengu Ransomware Group →
Publicly posted by tengu — 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.