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Matlock Security Services

Claimed by Rhysida · listed 2 years ago

19m
Age
since listed · data leaked

Status timeline

  1. ListedDec 7, 2024
  2. Data leakeddate unknown

At a glance

Group
Rhysida
Status
Data leaked
Country
United States
Sector
Business Services
Listed on leak site
Dec 7, 2024

About the victim

AI dossier — public-source company profile

Matlock Security Services is a Tulsa-based commercial security provider with over 30 years of experience. They offer security and fire alarm systems, access control, video surveillance, audio systems, and vehicle tracking to businesses throughout the Tulsa metro area.

Industry
Commercial Security Systems & Services
Address
Tulsa, Oklahoma, United States
Founded
1982

Attack summary

Severity: high — Confirmed data exfiltration (disclosed_status: data_published) from a security services company exposes customer information and potentially sensitive security infrastructure details. Security companies hold detailed information about client facilities, access systems, and vulnerabilities.

Rhysida claims to have compromised Matlock Security Services. The group has published data from the victim, indicating exfiltration occurred, though specific data types and operational impact are not detailed in the available post excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • business customer records
  • security system configurations
  • access control data
  • surveillance system information

What the group claims

Matlock Security Services With over 30 years of experience, Matlock Security has been protecting business throughout the Tulsa metro area.

Sources

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 Rhysida

Rhysida is a ransomware group that emerged in June 2023, operating with primarily financial motivations through targeted attacks against critical infrastructure and public sector organizations. The group's origin and potential state affiliations remain unclear, though they operate independently rather than as a traditional Ransomware-as-a-Service model, with limited public documentation regarding connections to other cybercriminal organizations. Rhysida employs double extortion tactics, typically gaining initial access through compromised VPN credentials and exploiting vulnerable public-facing applications before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group has demonstrated a particular focus on healthcare and educational institutions, with notable attacks documented by CISA and FBI advisories highlighting their targeting of hospitals and school districts across multiple countries, resulting in significant operational disruptions to critical services. As of late 2024, Rhysida remains an active threat with continued operations targeting organizations primarily in the United States, Canada, and other Western nations, maintaining their focus on high-value sectors where operational disruption can maximize ransom payment likelihood. The group has been linked to 282 public disclosures across our corpus. First observed on a leak site on June 5, 2023; most recent post June 18, 2026. The operation is currently active.

Timeline of this disclosure

  • December 7, 2024Matlock Security Services listed by Rhysidaon the group's public leak site

Other recent disclosures by Rhysida

Rhysida has been linked to 282 public victims on Darkfield. A sample of the most recent:

See the full Rhysida 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, Matlock Security Services is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Rhysida means Matlock Security Services 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 Rhysida'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.