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, 2025michigancityin.gov listed by obscuraon the group's public leak site

Data size: 450 GB

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 259 disclosures indexed across all operators we track. Geographically, michigancityin.gov 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

City of Michigan City, Indiana

listed as michigancityin.gov · Claimed by obscura · listed 7 months ago

450 GB

Data size

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: Public Sector
Listed on leak site: Oct 13, 2025
Data size: 450 GB

About the victim

AI dossier — public-source company profile

The City of Michigan City is the official municipal government of Michigan City, Indiana, USA. It administers a full range of city services including public safety (police, fire, emergency management), infrastructure (water works, sanitary district, streets, airport), community development, parks and recreation, and resident services. As a local government entity, it holds sensitive data on residents, employees, and city operations.

Industry: Municipal Government
Address: 100 E Michigan Blvd, Michigan City, IN 46360, United States

Attack summary

Severity: critical — 450 GB of data from a municipal government has been confirmed published, almost certainly containing PII of residents and employees, public safety records, and potentially sensitive law enforcement or financial data — all categories of regulated or highly sensitive information at scale.

The ransomware group Obscura claims to have exfiltrated 450 GB of data from the City of Michigan City's systems, with the data now published. No ransom amount was stated.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Government administrative records
Resident personal information
Employee records
Public safety records (police, fire, emergency management)
Financial/controller records
Planning and zoning documents
Water works and sanitary district data
Building permits and inspection records
Legal/attorney documents

What the group claims

Revenue: ?? | Leak Size: 450 GB | Status: Published

Sources

Victim sitemichigancityin.gov
Leak posthttp://obscurad3aphckihv7wptdxvdnl5emma6t3vikcf3c5oiiqndq6y6xad.onion/leaks/10

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.