Was momenta.cn hit by ransomware?

momenta.cn was listed by the Dragonforce ransomware operation (China), 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 Dragonforce ransomware group?

Dragonforce 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 momenta.cn breach?

Dragonforce published data attributed to momenta.cn. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Momenta

listed as momenta.cn · Claimed by Dragonforce · listed 1 day ago

Age

since listed · data leaked

Status timeline

ListedJul 14, 2026
Data leakeddate unknown

At a glance

Group: Dragonforce
Status: Data leaked
Country: China
Sector: Technology
Listed on leak site: Jul 14, 2026

About the victim

AI dossier — public-source company profile

Momenta is a Chinese AI and autonomous-driving company developing physical AI solutions for vehicle automation. The company offers mass-production assisted-driving features (L2–L2++) and scalable robotaxi/robovan platforms, and recently completed an IPO with a $9B+ market capitalization.

Industry: Autonomous Driving & AI

Attack summary

Severity: critical — Confirmed exfiltration of source code, financial records, and employee personal data from a large publicly-traded technology company; operational encryption; allegations of regulatory concealment amplify impact.

DragonForce claims to have encrypted servers and workstations, and exfiltrated source code, financial documents, configuration files, and the employee database. The group alleges Momenta is concealing the breach from Chinese regulators, HKEX, and investors.

critical

Data the group says was taken

AI dossier — extracted from the leak post

source code
financial documents
configuration files
employee database

What the group claims

Momenta is an AI and autonomous-driving company. All source code, financial documents, configuration files, employee database, and more were stolen. Servers and workstations were encrypted. Momenta is trying to hide everything from Chinese regulators, the HKEX commission, and investors while reporting a $751M profit from its recent IPO. With a $9B+ market capitalization, this amounts to one of the largest financial frauds in Chinese history.

Sources

Source

Indexed 1 day 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 Dragonforce

Dragonforce is a relatively new ransomware group that emerged in December 2023, operating with apparent financial motivations based on their targeting patterns and victim selection. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their rapid accumulation of 439 documented victims suggests either sophisticated capabilities or possible connections to existing ransomware infrastructure. Based on their targeting patterns across diverse sectors including manufacturing, business services, technology, and construction, Dragonforce appears to employ opportunistic attack methodologies, though specific initial access vectors, encryption methods, and extortion tactics have not been publicly detailed by major security firms or law enforcement agencies. The group has demonstrated a preference for targeting organizations primarily in English-speaking countries and Western Europe, with the United States, United Kingdom, Germany, Australia, and Italy representing their most frequent victim locations, suggesting possible language capabilities or geographic operational preferences. As of current reporting, Dragonforce appears to remain active given their recent emergence and ongoing victim acquisition, though the lack of detailed public analysis from major threat intelligence organizations indicates either operational security measures that have limited researcher visibility or that the group has not yet conducted sufficiently high-profile attacks to warrant extensive public documentation by CISA, FBI, or established security research firms. The group has been linked to 627 public disclosures across our corpus. First observed on a leak site on December 13, 2023; most recent post July 14, 2026. The operation is currently active.

Also tracked as: DRAGON FORCE.

Timeline of this disclosure

July 14, 2026momenta.cn listed by Dragonforceon the group's public leak site

Other recent disclosures by Dragonforce

Dragonforce has been linked to 627 public victims on Darkfield. A sample of the most recent:

See the full Dragonforce dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, momenta.cn is reported in China, a country with 41 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Dragonforce means momenta.cn 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.
Monitor for the data appearing on Dragonforce'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.