Was yoniot.cn hit by ransomware?

yoniot.cn was listed by the Darkvault 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 Darkvault ransomware group?

Darkvault 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 yoniot.cn breach?

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

Ransomware victim disclosure

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有你智居

listed as yoniot.cn · Claimed by Darkvault · listed 2 years ago

18m

Age

since listed · data leaked

Status timeline

ListedJan 6, 2025
Data leakeddate unknown

At a glance

Group: Darkvault
Status: Data leaked
Country: China
Listed on leak site: Jan 6, 2025

About the victim

AI dossier — public-source company profile

有你智居 (YONIOT) is a Chinese high-tech enterprise specializing in IoT technology, smart home, and intelligent community software and hardware solutions. The company operates a SaaS-based property management platform that serves property managers, developers, residents, and merchants with features including billing systems, OA automation, community services, and smart hardware integration (surveillance, access control, parking, smart home devices).

Industry: Smart Community Management Software & IoT Hardware

Attack summary

Severity: medium — Data exfiltration is claimed with published status, but no proof count, specific sensitive data types, or regulated information (PII at scale, medical, financial) are confirmed in the leak post. The company handles resident/community data which suggests moderate sensitivity, but without confirmation of scale or specific regulated categories, this warrants medium classification.

Darkvault claims to have exfiltrated data from 有你智居. The group post describes the company without detailing specific data types or operational disruption; status listed as 'data_published' but no proof files, screenshots, or file counts are mentioned in the provided excerpt.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Property management system data
Resident information
Billing records
Community service user data
Smart device/IoT logs

What the group claims

有你物联”是一家专注于物联网科技、智能家居、智慧社区的软硬件研发与应用的国家高新技术企业。凭借在物联网领域深耕10余年的研发团队，不断自主研发，形成了以智慧社区、智能家居为一体的智慧系统解决方案。致力于让智能家居成为家庭的一员。

Sources

Victim siteyoniot.cn
Leak posthttp://mdhby62yvvg6sd5jmx5gsyucs7ynb5j45lvvdh4dsymg43puitu7tfid.onion//post/NzdhZDA1YWY0NTcwYTE4Yzk2ZWU3NT

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 Darkvault

Darkvault is an emerging ransomware group first observed in April 2024, operating with apparent financial motivations and demonstrating a broad international targeting approach across multiple high-value sectors. The group's origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest a financially motivated cybercriminal organization rather than state-sponsored activity. Given the limited public documentation from established security research organizations, specific details regarding Darkvault's attack methodology, initial access vectors, encryption techniques, and potential data exfiltration practices have not been comprehensively analyzed or reported by major threat intelligence providers such as CISA, FBI, or Mandiant. The group has reportedly compromised approximately 55 victims across diverse geographic regions, with particular concentration in India, the United States, Brazil, the United Kingdom, and South Korea, while demonstrating sector preferences for technology companies, business services, healthcare organizations, transportation and logistics firms, and financial institutions. Due to the group's recent emergence and limited coverage in established threat intelligence channels, comprehensive details regarding notable high-profile campaigns, ransom demands, or specific law enforcement actions remain undocumented in publicly available security research. Current intelligence suggests the group maintains active operations as of late 2024, though the limited public reporting on Darkvault indicates either highly effective operational security or insufficient analysis by major cybersecurity research organizations. The group has been linked to 55 public disclosures across our corpus. First observed on a leak site on April 11, 2024; most recent post January 6, 2025. The operation is currently inactive.

Also tracked as: DARK VAULT.

Timeline of this disclosure

January 6, 2025yoniot.cn listed by Darkvaulton the group's public leak site

Other recent disclosures by Darkvault

Darkvault has been linked to 55 public victims on Darkfield. A sample of the most recent:

See the full Darkvault dossier →

Sector and geography

Geographically, yoniot.cn is reported in China, a country with 72 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Darkvault means yoniot.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 Darkvault'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.