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Ransomware victim disclosure

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Michael Larson & Co., P.C.

listed as Michael L Larson · Claimed by Akira · listed 4 months ago

3m
Age
since listed · data leaked

Status timeline

  1. ListedFeb 13, 2026
  2. Data leakeddate unknown

At a glance

Group
Akira
Status
Data leaked
Listed on leak site
Feb 13, 2026

About the victim

AI dossier — public-source company profile

Michael Larson & Co., P.C. (MLL Co) is a tax and client advisory firm based in the greater Portland, Oregon area. The firm provides services to businesses operating locally, nationally, and globally. It handles sensitive financial and personal data on behalf of its business and individual clients.

Industry
Tax & Business Advisory Services
Address
Portland, Oregon, United States

Attack summary

Severity: critical — The threat actor claims exfiltration of regulated PII at scale including passports, driver's licenses, and medical information belonging to both employees and customers, alongside sensitive financial records from a professional tax advisory firm — constituting a multi-category regulated data breach.

Akira claims to have exfiltrated company data including financial records, employee and customer personally identifiable information (passports, driver's licenses, medical information), invoices, audit documents, and personal files, with publication of the data described as imminent.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Audit documents
  • Payment details
  • Financial reports
  • Invoices
  • Employee passports
  • Customer passports
  • Medical information
  • Driver's licenses
  • Personal files
  • Customer data

What the group claims

Michael Larson & Co., P.C. (MLL Co) specializes in providing tax and client advisory services to businesses operating globally, na tionally, and within the greater Portland area. We are going to upload company data soon. You will find financial data (audit, payment details,financial reports, invoices), emplo yees and customers information (passports, medical information, d river's license ) A bit of personal files and customers data.

Source

Indexed 4 months 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 Akira

Akira is a ransomware group that emerged in April 2023, operating with primarily financial motivations and has rapidly established itself as a significant threat actor with over 1,500 documented victims. The group's country of origin remains unclear, though they operate as a Ransomware-as-a-Service (RaaS) model, recruiting affiliates to conduct attacks while the core group maintains the ransomware infrastructure and negotiation processes. Akira employs multi-faceted attack methodologies including exploitation of VPN vulnerabilities, particularly targeting Cisco VPN appliances, and utilizes living-off-the-land techniques along with legitimate administrative tools to avoid detection, while implementing double extortion tactics by exfiltrating sensitive data before deploying their encryption payload. The group has demonstrated a preference for targeting organizations in the United States, Canada, Germany, United Kingdom, and Italy, with a particular focus on manufacturing, business services, technology, and construction sectors, though they have shown willingness to attack various industries. Despite being relatively new to the ransomware landscape, Akira has maintained consistent operations throughout 2023 and into 2024, with law enforcement agencies including CISA and FBI issuing advisories about their activities, though no major disruption operations have been publicly reported against the group as of late 2024. The group has been linked to 1,648 public disclosures across our corpus. First observed on a leak site on April 26, 2023; most recent post June 12, 2026. The operation is currently active.

Also tracked as: Megazord.

Timeline of this disclosure

  • February 13, 2026Michael L Larson listed by Akiraon the group's public leak site

Sector and geography

Geographically, Michael L Larson is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Akira means Michael L Larson 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.
  • Monitor for the data appearing on Akira'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.

Michael L Larson data breach — Akira ransomware leak (2026) · Darkfield