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Treadwell Tamplin & Co., CPA

listed as TTCCPA · Claimed by Trigona · listed 3 years ago

38m
Age
since listed · data leaked

Status timeline

  1. ListedMay 13, 2023
  2. Data leakeddate unknown

At a glance

Group
Trigona
Status
Data leaked
Country
United States
Sector
Financial Services
Listed on leak site
May 13, 2023

About the victim

AI dossier — public-source company profile

Treadwell Tamplin is an accounting firm serving individuals and businesses in the San Francisco Bay Area. The firm offers a range of financial and tax services delivered by a team of accounting and tax professionals. It is known for providing personalized services to its clients.

Industry
Accounting & Tax Services
Address
San Francisco Bay Area, California, United States

Attack summary

Severity: critical — An accounting firm holds regulated financial and tax data containing PII for both individuals and businesses; confirmed data publication by the threat actor makes this a critical disclosure involving likely regulated sensitive data at scale.

The Trigona ransomware group claims to have attacked Treadwell Tamplin and has published data (disclosed status: data_published), indicating exfiltration of company and client data from the accounting firm.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Client financial records
  • Tax documents
  • Personal identifying information (PII)
  • Business financial data

What the group claims

Treadwell Tamplin is an accounting firm that provides a range of financial services to individuals and businesses in the San Francisco Bay area. The company's team of accounting and tax professionals has extensive knowledge in their respective fields and is committed to delivering personalized services to their clients.

Source

Indexed 3 years 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 Trigona

Trigona is a relatively new ransomware group that emerged in April 2023, operating with primarily financial motivations and targeting organizations across multiple sectors globally. The group's origin and specific affiliations remain unclear based on publicly available intelligence, though their targeting patterns suggest they operate as an independent entity rather than a established Ransomware-as-a-Service operation. Trigona employs double extortion tactics, combining data encryption with data exfiltration and threats to publish stolen information on leak sites, though specific details about their initial access vectors and encryption methods have not been extensively documented by major security researchers. The group has claimed 49 victims as of current reporting, with their attacks concentrated in the United States, Australia, Mexico, France, and Indonesia, primarily targeting business services, manufacturing, healthcare, technology, and finance sectors. Given the group's recent emergence in 2023, there are no widely reported major campaigns or significant law enforcement actions documented by CISA, FBI, or established threat intelligence firms. Trigona appears to remain active as of current intelligence assessments, though the limited public documentation reflects their relatively recent entry into the ransomware landscape. The group has been linked to 49 public disclosures across our corpus. First observed on a leak site on April 17, 2023; most recent post March 30, 2024. The operation is currently inactive.

Timeline of this disclosure

  • May 13, 2023TTCCPA listed by Trigonaon the group's public leak site

Other recent disclosures by Trigona

Trigona has been linked to 49 public victims on Darkfield. A sample of the most recent:

See the full Trigona dossier →

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 1,184 disclosures indexed across all operators we track. Geographically, TTCCPA is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Trigona means TTCCPA 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 Trigona'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.