Passero Associates Listed by hive Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The Passero Associates Listed by hive Ransomware Group (reported March 24, 2022) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.
What happened
Passero Associates appeared on the hive ransomware leak site on March 24, 2022. The listing indicates that the group claims to have exfiltrated internal files during a ransomware attack. No information has been provided about when the underlying incident occurred, how access was obtained, or how many files were involved. The organization has not issued a public statement confirming or disputing the claim.
Who is hive?
Hive is a ransomware group that emerged publicly in 2021 and has since conducted operations against organizations in multiple countries. The group is known for a double-extortion approach in which it encrypts systems and also removes data, then threatens to publish the stolen material if a ransom is not paid. Hive has maintained a leak site where it lists victims and, in some cases, posts samples of claimed data. Public reporting has associated the group with the use of ransomware-as-a-service infrastructure, allowing affiliates to carry out attacks under the Hive brand.
About Passero Associates
Passero Associates operates as a professional services firm in the engineering and consulting sector. Firms in this field typically manage technical project files, client correspondence, regulatory submissions, and internal administrative records. These organizations often work with public agencies and private clients on infrastructure and development projects, which means they accumulate documentation that can include both technical specifications and identifying information about individuals and entities involved in those projects.
What was likely exposed
The only detail released is that internal files were allegedly exfiltrated. No inventory of file types or data categories has been published. Organizations of this kind commonly store employee records, client contact information, contract documents, and project-related materials. Whether any of these categories were present in the claimed exfiltration cannot be confirmed from available information.
Why it matters
Internal files from an engineering firm can contain details that affect both the organization and third parties referenced in the records. Individuals whose information appears in such files may face risks of targeted follow-on activity if the material is later distributed. For the firm itself, the incident introduces uncertainty around the confidentiality of ongoing or completed work and may require review of access controls and data-handling practices.
If your data was in this claimed breach
Anyone who believes their information may have been included should review account statements and credit reports for signs of unauthorized use. Standard protective steps include enabling multi-factor authentication on important accounts and replacing passwords that may have been reused across services. A free exposure scan using an email address can show whether that address has appeared in previously published breach data sets, providing a baseline for further monitoring.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
More recent breaches
BHARBERT Listed by hive Ransomware GroupFONTAINEBLEAU Listed by hive Ransomware GroupLaVan & Neidenberg Listed by hive Ransomware GroupAuthentic Brands Group Listed by hive Ransomware GroupLatest breaches
Read GalaxyWarden’s full analysis of the Passero Associates Listed by hive Ransomware Group →
Publicly posted by hive — 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.