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Langenberg, Strubberg, Arand & King, LLC

Claimed by Pear · listed 2 months ago

2m
Age
since listed · data leaked

Status timeline

  1. ListedMay 10, 2026
  2. Data leakeddate unknown

At a glance

Group
Pear
Status
Data leaked
Country
United States
Sector
Business Services
Listed on leak site
May 10, 2026

About the victim

AI dossier — public-source company profile

Langenberg, Strubberg, Arand & King, LLC is a CPA firm based in Union, Missouri, offering accounting, tax preparation, tax planning, payroll, bookkeeping, and QuickBooks services to business owners, executives, and independent professionals. The firm serves both individual and business clients with a broad range of financial and advisory services. It operates from a single office location in Union, MO.

Industry
Accounting & Tax Services
Address
1345 Union Avenue, Suite 1, Union, MO 63084

Attack summary

Severity: critical — The attacker claims exfiltration of regulated sensitive data at scale, including PHI and PII belonging to the firm's clients, as well as financial and HR records. As an accounting firm, client data likely includes highly sensitive tax and financial records for numerous individuals and businesses, meeting the threshold for critical severity.

The group 'pear' claims to have exfiltrated data from the firm including clients' and firm financials, HR records, PII, PHI, partners' and vendors' data, and the QuickBooks database, with the disclosure status marked as data_published.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Firm financial records
  • Client financial records
  • HR records
  • Personally Identifiable Information (PII)
  • Protected Health Information (PHI)
  • Partners' data
  • Vendors' data
  • QuickBooks database

What the group claims

Firm that specializes in providing accounting, tax, and advisory services

The leak post

captured from the group's site
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 |  **Langenberg, Strubberg, Arand & King, LLC ** Firm's and Clients’ Financials, HR, PII & PHI Records, Partners’ and Vendors’ Data, QuickBooks Database, etc.  |  
| --- |  
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Screenshot of the leak post

Leak screenshot for Langenberg, Strubberg, Arand & King, LLC

Sources

Source

Indexed 2 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 pear

The Pear ransomware group is a relatively new threat actor that emerged in August 2025, operating with primarily financial motivations and targeting victims across multiple countries and sectors. Based on their recent emergence and limited public documentation, specific details about their country of origin and organizational structure remain unclear, though their targeting patterns suggest a financially-driven operation that may operate independently or as part of a smaller ransomware-as-a-service model. With 65 documented victims since their August 2025 debut, the group has demonstrated a preference for targeting organizations in the United States, New Zealand, Australia, Egypt, and Switzerland, with particular focus on healthcare, business services, manufacturing, and technology sectors. Their attack methodology and specific technical details have not been extensively documented by major threat intelligence firms or law enforcement agencies, though their rapid victim acquisition suggests they have established effective initial access and encryption capabilities. Notable campaigns and high-profile attacks have not been publicly detailed by CISA, FBI, or major security research organizations, likely due to the group's recent emergence and relatively small scale compared to established ransomware operations. As of late 2025, Pear appears to remain active given their recent emergence and ongoing victim targeting across multiple geographic regions and industry verticals. The group has been linked to 105 public disclosures across our corpus. First observed on a leak site on August 5, 2025; most recent post July 15, 2026. The operation is currently active.

Timeline of this disclosure

  • May 10, 2026Langenberg, Strubberg, Arand & King, LLC listed by pearon the group's public leak site

Other recent disclosures by pear

pear has been linked to 105 public victims on Darkfield. A sample of the most recent:

See the full pear dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Langenberg, Strubberg, Arand & King, LLC is reported in United States, a country with 3,115 ransomware disclosures in our corpus.

If your organisation is affected

A listing by pear means Langenberg, Strubberg, Arand & King, LLC 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 pear'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.