Was Hughes Gill Cochrane Tinetti hit by ransomware?

Hughes Gill Cochrane Tinetti was listed by the Cicada3301 ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Cicada3301 ransomware group?

Cicada3301 is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Hughes Gill Cochrane Tinetti breach?

Cicada3301 published data attributed to Hughes Gill Cochrane Tinetti. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Hughes Gill Cochrane Tinetti

Claimed by Cicada3301 · listed 2 years ago

21m

Age

since listed · data leaked

Status timeline

ListedSep 24, 2024
Data leakeddate unknown

At a glance

Group: Cicada3301
Status: Data leaked
Country: United States
Listed on leak site: Sep 24, 2024

About the victim

AI dossier — public-source company profile

Hughes Gill Cochrane Tinetti, P.C. (HGCT) is a California-based law firm headquartered in Walnut Creek specializing exclusively in community association law throughout Northern California. Founded in 2002, the firm serves approximately 1,658 clients (nearly 100% homeowner associations and community association managers) with a team of more than a dozen experienced attorneys.

Industry: Legal Services - Community Association Law
Address: 1350 Treat Boulevard, Suite 550, Walnut Creek, CA 94597
Employees: 12-15
Founded: 2002

Attack summary

Severity: high — Law firm handling sensitive client data (HOA litigation, financial matters, governance issues) for 1,658+ community associations. Confirmed exfiltration of undisclosed scope affecting professional privilege and client confidentiality across multiple organizations.

Cicada3301 claims to have exfiltrated data from HGCT and published it via their onion leak site. The group does not specify what data types were compromised or the operational impact.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client files
Legal documents
Attorney work product
Client communications
Financial records

What the group claims

Headquartered in Walnut Creek, HGCT is a California law firm, with Bay Area roots, and strong local relationships. We focus exclusively on clients in the greater Northern California area and each of our attorneys is a recognized expert in community association law. Hughes & Gill was founded in 2002 by Michael Hughes and John Gill. Michael Cochrane became a shareholder in 2008, bringing his considerable litigation expertise to the firm. The evolution to HGCT was complete upon Amy Tinetti’s promotion from principal to shareholder in 2017. Downloads: http://cicadacnft7gcgnveb7wjm6pjpjcjcsugogmlrat7u7pcel3iwb7bhyd.onion/hughes_hill-dataleak

Sources

Victim sitehughes-gill.com
Leak posthttp://cicadabv7vicyvgz5khl7v2x5yygcgow7ryy6yppwmxii4eoobdaztqd.onion/dk479vmx76wr3bi601aamzpkgrw8ecbb

Source

Indexed 2 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 Cicada3301

Cicada3301 is a recently emerged ransomware group that began operations in June 2024, primarily motivated by financial gain through extortion activities targeting organizations across multiple sectors. The group's origin and affiliations remain largely undocumented in public threat intelligence reporting, with limited information available regarding their operational structure or potential connections to other cybercriminal organizations. Based on observed targeting patterns, Cicada3301 has demonstrated a preference for attacking business services, technology, manufacturing, and financial sector organizations, with their operations concentrated primarily in English-speaking countries including the United States, United Kingdom, and Canada, as well as extending to Spain and Singapore. The group has successfully compromised approximately 75 known victims since their emergence, though specific details regarding their attack methodologies, initial access vectors, encryption techniques, and extortion tactics have not been extensively documented in publicly available threat intelligence reports from major cybersecurity firms or government agencies. Given the limited public documentation available from CISA, FBI, Mandiant, or other reputable security researchers, the group's current operational status, technical capabilities, and specific attack infrastructure remain largely uncharacterized in open-source intelligence reporting. As of the most recent observations, Cicada3301 appears to remain active in conducting ransomware operations, though comprehensive analysis of their tactics, techniques, and procedures awaits more detailed public reporting from established threat intelligence sources. The group has been linked to 75 public disclosures across our corpus. First observed on a leak site on June 20, 2024; most recent post September 4, 2025. The operation is currently inactive.

Timeline of this disclosure

September 24, 2024Hughes Gill Cochrane Tinetti listed by Cicada3301on the group's public leak site

Other recent disclosures by Cicada3301

Cicada3301 has been linked to 75 public victims on Darkfield. A sample of the most recent:

See the full Cicada3301 dossier →

Sector and geography

Geographically, Hughes Gill Cochrane Tinetti is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Cicada3301 means Hughes Gill Cochrane Tinetti 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 Cicada3301'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.