Monteleone & McCrory, LLP Listed by alphv Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The Monteleone & McCrory, LLP Listed by alphv Ransomware Group (reported April 15, 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
The incident came to public attention when Monteleone & McCrory, LLP was listed on the alphv ransomware group's leak site on April 15, 2022. The group claims to have exfiltrated internal files from the firm as part of a ransomware operation. No further details on the timing of the intrusion, the method of access, the volume of data, or any ransom demand have been made public.
Who is alphv?
Alphv, also tracked publicly as BlackCat, is a ransomware-as-a-service operation that has conducted multiple intrusions since at least late 2021. The group typically deploys encryption on victim systems and maintains a leak site where it lists organizations from which it claims to have stolen data. Listings on the site represent the group's assertions rather than independently verified events.
About Monteleone & McCrory, LLP
Monteleone & McCrory, LLP is a law firm operating as a limited liability partnership. Law firms routinely maintain records that include client communications, case files, contracts, and other materials generated during legal representation. Such organizations are frequent targets for ransomware actors because the information they hold can be highly sensitive to the clients involved.
What was likely exposed
The alphv listing refers to internal files that the group claims were exfiltrated. No inventory of specific data types, file categories, or affected individuals has been released. Organizations of this type commonly store client names, contact details, financial information tied to legal matters, and privileged communications, but the exact contents of any exfiltrated material in this case remain unconfirmed.
Why it matters
Unauthorized access to a law firm's internal records can expose details that clients expect to remain confidential. Even without confirmed specifics, the presence of such records outside the firm increases the chance that personal or business information could be used for fraud, extortion, or other misuse. The firm itself faces potential regulatory, contractual, and reputational consequences while the scope of exposure stays unknown.
If your data was in this claimed breach
Individuals who believe their information may have been held by Monteleone & McCrory, LLP should monitor financial accounts and credit reports for unusual activity. Changing passwords for any related online services and enabling multi-factor authentication are standard first steps. Readers can also 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
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Publicly posted by alphv — 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.