Was McCarthy Tire Service hit by ransomware?

McCarthy Tire Service was listed by the Storm 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 Storm ransomware group?

Storm 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 McCarthy Tire Service breach?

Storm published data attributed to McCarthy Tire Service. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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McCarthy Tire Service

Claimed by Storm · listed 16 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedSep 15, 2026
Data leakeddate unknown

At a glance

Group: Storm
Status: Data leaked
Country: United States
Sector: Retail & E-Commerce
Listed on leak site: Sep 15, 2026

About the victim

AI dossier — public-source company profile

McCarthy Tire Service is a family-owned American tire and automotive company founded in 1926, headquartered in Wilkes-Barre, Pennsylvania. Operating 70+ service locations across eight U.S. East Coast states, it specializes in commercial tire sales, fleet management, truck repairs, industrial tires, and roadside assistance, and ranks among the largest independent commercial tire dealers in the United States.

Industry: Commercial Tire Sales & Automotive Services
Address: 340 Kidder Street, Wilkes-Barre, PA 18702, United States
Employees: 1000-5000
Founded: 1926

Attack summary

Severity: low — No proof files, screenshots, or sample data disclosed. No confirmation of exfiltration or encryption. Announcement only.

The Storm group claims to have compromised McCarthy Tire Service. The leak post does not specify whether data was exfiltrated, encrypted, or both, nor does it detail the scope or nature of any accessed data.

low

What the group claims

McCarthy Tire Service is a family-owned and operated American tire and automotive service company founded in 1926 and headquartered in Wilkes-Barre, Pennsylvania. The company specializes in commercial tire sales and services, fleet management, truck mechanical repairs, off-the-road (OTR) and industrial tires, passenger vehicle services, and 24-hour commercial roadside assistance. McCarthy Tire also operates Bandag retread manufacturing plants, providing tire retreading solutions for commercial and industrial customers. With more than 70 service locations across eight states on the U.S. East Coast, the company serves transportation, construction, agriculture, forestry, and other industries. McCarthy Tire is one of the largest independent commercial tire dealers in the United States. The company headquarters is located in 340 Kidder Street, Wilkes-Barre, PA 18702, United States. 1K-5K Employees

Sources

Victim sitemccarthytire.com
Leak posthttp://yqhecvqtdvq6p7duqcgw2qca77spbgakxcoibtx6zpvfshltsbbbhfqd.onion/company/6aa878cc1b46190e23c43933

Source

Indexed 16 hours 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 Storm

Storm is a ransomware group first observed in August 2026, operating with an apparent financial motivation based on its targeting profile, though limited public documentation exists given its recent emergence and relatively small victim footprint. The group has claimed or been attributed to attacks against at least six known victims, with the United States representing its primary target geography. Storm has demonstrated a preference for targeting the healthcare and manufacturing sectors, alongside a broader category of other industries, suggesting an opportunistic rather than highly specialized targeting philosophy. Due to the group's recent emergence and limited victim count, comprehensive technical details regarding its initial access vectors, encryption methodology, tooling, or affiliation with known threat actor ecosystems have not yet been formally documented by CISA, the FBI, Mandiant, or other major threat intelligence publishers as of the time of this writing. No confirmed RaaS infrastructure, dark web leak site activity, or law enforcement actions against the group have been publicly attributed or reported in open sources. Given its nascent operational timeline beginning in 2026, Storm should be monitored as an emerging threat, particularly within the healthcare sector where ransomware attacks carry significant operational and patient safety implications, but analysts should treat any further characterization beyond the known victim and targeting data with caution pending additional corroborating intelligence. The group has been linked to 56 public disclosures across our corpus. First observed on a leak site on August 7, 2026; most recent post September 15, 2026. The operation is currently active.

Timeline of this disclosure

September 15, 2026McCarthy Tire Service listed by Storm on the group's public leak site

Other recent disclosures by Storm

Storm has been linked to 56 public victims on Darkfield. A sample of the most recent:

See the full Storm dossier →

Sector and geography

This disclosure adds to ransomware activity in the Retail & E-Commerce sector, which has 21 disclosures indexed across all operators we track. Geographically, McCarthy Tire Service is reported in United States, a country with 3,165 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Storm means McCarthy Tire Service 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 Storm'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.