Was Cambridge Mobile TelematicsNEW hit by ransomware?

Cambridge Mobile TelematicsNEW was listed by the coinbasecartel 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 coinbasecartel ransomware group?

coinbasecartel 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 Cambridge Mobile TelematicsNEW breach?

coinbasecartel published data attributed to Cambridge Mobile TelematicsNEW. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Cambridge Mobile Telematics

listed as Cambridge Mobile TelematicsNEW · Claimed by Coinbasecartel · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedJun 2, 2026
Data leakeddate unknown

At a glance

Group: Coinbasecartel
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Jun 2, 2026

About the victim

AI dossier — public-source company profile

Cambridge Mobile Telematics (CMT) is a US-based technology company headquartered in Cambridge, Massachusetts, specializing in mobile sensing and data analytics for the telematics and insurtech sectors. The company provides driving behavior measurement and AI-powered analytics solutions to help insurers, fleets, and enterprises improve road safety and reduce risk through usage-based insurance and driver safety programs.

Industry: Telematics & InsurTech
Address: Cambridge, Massachusetts, US

Attack summary

Severity: medium — Data has been published by the threat actor, indicating confirmed exfiltration. However, the specific sensitivity and scale of the disclosed data are not detailed in the available post excerpt. The company operates in insurtech/telematics, which may involve sensitive behavioral and potentially PII-adjacent data, but without more granular details, a medium severity is appropriate.

The coinbasecartel group claims to have conducted an attack on Cambridge Mobile Telematics and published data as evidence of the breach. The specific nature of the exfiltration (data types, scope, or operational impact) is not detailed in the available post excerpt.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Driving behavior data
Mobile sensor analytics
Customer/enterprise data

Original description

AI-summarised, not from the leak post

Cambridge Mobile Telematics (CMT) is a US-based technology company headquartered in Cambridge, Massachusetts. It operates in the telematics and insurtech industry, providing mobile sensing and data analytics solutions. CMT specializes in measuring driving behavior using smartphone sensors and AI to help insurers, fleets, and enterprises improve road safety and reduce risk through usage-based insurance and driver safety programs.

Sources

Leak posthttp://fjg4zi4opkxkvdz7mvwp7h6goe4tcby3hhkrz43pht4j3vakhy75znyd.onion/companies/cmtel

Source

Indexed 3 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 coinbasecartel

CoinbaseCartel is a ransomware group that emerged in September 2025 with financially motivated operations targeting organizations across multiple sectors and geographic regions. The group has demonstrated significant activity in a short timeframe, compromising at least 102 known victims primarily across the United States, United Arab Emirates, Germany, Canada, and Brazil. Their targeting patterns show a preference for technology companies, financial services organizations, manufacturing entities, and consumer services businesses, suggesting an opportunistic approach focused on organizations likely to have both valuable data and the financial resources to pay ransoms. Given the group's recent emergence and limited public documentation from established threat intelligence sources, details regarding their specific attack methodologies, infrastructure, and organizational structure remain largely unconfirmed by major cybersecurity firms or law enforcement agencies. The group appears to maintain active operations as of late 2025, though comprehensive analysis of their tactics, techniques, and procedures awaits further investigation and reporting by established threat intelligence organizations. The group has been linked to 219 public disclosures across our corpus. First observed on a leak site on September 15, 2025; most recent post August 23, 2026. The operation is currently active.

Also tracked as: coinbase cartel.

Timeline of this disclosure

June 2, 2026Cambridge Mobile TelematicsNEW listed by coinbasecartelon the group's public leak site

Other recent disclosures by coinbasecartel

coinbasecartel has been linked to 219 public victims on Darkfield. A sample of the most recent:

See the full coinbasecartel dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,573 disclosures indexed across all operators we track. Geographically, Cambridge Mobile TelematicsNEW is reported in United States, a country with 3,164 ransomware disclosures in our corpus.

If your organisation is affected

A listing by coinbasecartel means Cambridge Mobile TelematicsNEW 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 coinbasecartel'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.