Disclosure context

About obscura

Obscura is a recently emerged ransomware group that was first observed in September 2025, operating with apparent financial motivations based on their targeting patterns across multiple sectors and geographic regions. The group has compromised at least 33 known victims since their emergence, demonstrating rapid operational capabilities despite their recent entry into the ransomware landscape. Limited public documentation exists regarding their country of origin, operational structure, or affiliations with established ransomware families, though their targeting pattern suggests either opportunistic attacks or access to diverse initial compromise vectors. Their victim profile spans multiple sectors including healthcare, technology, manufacturing, and construction, with geographic focus on the United States, Malaysia, Portugal, Egypt, and Denmark, indicating either broad targeting criteria or access to varied attack infrastructure across different regions. Due to the group's recent emergence and limited public reporting from major security vendors and law enforcement agencies, specific details regarding their technical capabilities, encryption methods, data exfiltration practices, or ransom demands remain undocumented in open-source intelligence. The group appears to remain active as of late 2025, though insufficient time has elapsed to determine their long-term operational sustainability or potential law enforcement attention. The group has been linked to 33 public disclosures across our corpus. First observed on a leak site on September 5, 2025; most recent post January 11, 2026. The operation is currently active.

Timeline of this disclosure

October 13, 2025plazadental.com listed by obscuraon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, plazadental.com is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

Plaza Dental Group

listed as plazadental.com · Claimed by obscura · listed 7 months ago

Age

since listed · data leaked

Status timeline

Listed
Oct 13, 2025
Data leaked

At a glance

Group: obscura
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Oct 13, 2025

About the victim

AI dossier — public-source company profile

Plaza Dental Group is a dental practice located in San Jose, California, offering a broad range of general, cosmetic, restorative, orthodontic, and specialized dental services. The practice is led by Dr. Bangalore and serves individual and family patients in the local community. The office is scheduled to close permanently on March 12, 2026.

Industry: Dental Healthcare Services
Address: 4205 San Felipe Road, Suite 200, San Jose, CA

Attack summary

Severity: high — The disclosure status is 'data_published', meaning data has reportedly been released. As a dental healthcare provider, the exfiltrated data almost certainly includes protected health information (PHI) and personally identifiable information (PII) of patients, which constitutes regulated sensitive data under HIPAA. The exact volume is unspecified, preventing a 'critical' rating.

The ransomware group 'obscura' claims to have published data exfiltrated from Plaza Dental Group, with the leak status listed as 'Published' and a leak size described as 'xx GB'; no ransom amount was stated and the exact volume of data is unspecified.

high

Data the group says was taken

AI dossier — extracted from the leak post

Patient dental records
Personal health information (PHI)
Insurance and financial information
Patient contact details

What the group claims

Revenue: $<5kk | Leak Size: xx GB | Status: Published

Sources

Victim siteplazadental.com
Leak posthttp://obscurad3aphckihv7wptdxvdnl5emma6t3vikcf3c5oiiqndq6y6xad.onion/leaks/4

Source

Indexed 7 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.