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Karen S Pouliot, CPA

listed as Karen S Pouliot · Claimed by Medusa · listed 1 year ago

101.20 GB
Data size
16m
Age
since listed · data leaked

Status timeline

  1. ListedMar 14, 2025
  2. Data leakeddate unknown

At a glance

Group
Medusa
Status
Data leaked
Country
United States
Listed on leak site
Mar 14, 2025
Data size
101.20 GB

About the victim

AI dossier — public-source company profile

Karen S Pouliot, CPA is an accounting and tax services firm located in Annapolis, Maryland, providing accounting, tax preparation, and management services to clients.

Industry
Accounting & Tax Services
Address
147 Old Solomons Island Road, Suite 208, Annapolis, Maryland 21401

Attack summary

Severity: high — Confirmed exfiltration of 101.20 GB from a CPA firm indicates large-scale exposure of sensitive financial and tax data belonging to multiple clients, likely including PII, business financials, and tax information.

Medusa claims to have exfiltrated 101.20 GB of data from the firm. The group has published the data, indicating confirmed data theft rather than encryption-only.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • client financial records
  • tax documents
  • accounting files
  • business management records

What the group claims

Karen S Pouliot, CPA is to provide accounting, tax and management services to clients. Karen S Pouliot, CPA corporate office is located in 147 Old Solomons Island Road, Suite 208 Annapolis, Maryland 21401. The total amount of data leakage is 101.20 GB

Sources

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Medusa

Medusa, also known as MedusaLocker, is a financially motivated ransomware group that emerged in November 2022 and has since compromised 568 known victims across multiple countries. The group's origin and specific affiliations remain unclear from publicly available intelligence, though their operational patterns suggest they function as an independent ransomware operation rather than a documented Ransomware-as-a-Service model. Medusa primarily targets organizations in the United States, United Kingdom, Canada, Italy, and Australia, with a focus on business services, healthcare, manufacturing, and technology sectors, employing typical ransomware tactics including data encryption and likely exfiltration for double extortion purposes, though specific technical methodologies and initial access vectors have not been extensively documented in public threat intelligence reports. While the group has maintained a relatively high victim count since its emergence, detailed information about specific notable campaigns, high-profile victims, or major ransom demands has not been widely reported by major cybersecurity firms or law enforcement agencies. As of current intelligence assessments, Medusa appears to remain active in the threat landscape, continuing to target organizations across their established geographic and sectoral preferences. The group has been linked to 635 public disclosures across our corpus. First observed on a leak site on November 15, 2022; most recent post May 5, 2026. The operation is currently active.

Also tracked as: MedusaLocker, MEDUSA LOCKER.

Timeline of this disclosure

  • March 14, 2025Karen S Pouliot listed by Medusaon the group's public leak site
Data size
101.20 GB

Other recent disclosures by Medusa

Medusa has been linked to 635 public victims on Darkfield. A sample of the most recent:

See the full Medusa dossier →

Sector and geography

Geographically, Karen S Pouliot is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Medusa means Karen S Pouliot appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Medusa's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.