Disclosure context

About Rhysida

Rhysida is a ransomware group that emerged in June 2023, operating with primarily financial motivations through targeted attacks against critical infrastructure and public sector organizations. The group's origin and potential state affiliations remain unclear, though they operate independently rather than as a traditional Ransomware-as-a-Service model, with limited public documentation regarding connections to other cybercriminal organizations. Rhysida employs double extortion tactics, typically gaining initial access through compromised VPN credentials and exploiting vulnerable public-facing applications before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group has demonstrated a particular focus on healthcare and educational institutions, with notable attacks documented by CISA and FBI advisories highlighting their targeting of hospitals and school districts across multiple countries, resulting in significant operational disruptions to critical services. As of late 2024, Rhysida remains an active threat with continued operations targeting organizations primarily in the United States, Canada, and other Western nations, maintaining their focus on high-value sectors where operational disruption can maximize ransom payment likelihood. The group has been linked to 278 public disclosures across our corpus. First observed on a leak site on June 5, 2023; most recent post May 20, 2026. The operation is currently active.

Timeline of this disclosure

May 20, 2026Stuttgart listed by Rhysidaon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Government sector, which has 509 disclosures indexed across all operators we track. Geographically, Stuttgart is reported in Germany, a country with 695 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 Stuttgart

listed as Stuttgart · Claimed by Rhysida · listed 23 hours ago

Today

Age

since listed · listed for ransom

Status timeline

Listed
May 20, 2026

Current state: Listed for ransom

At a glance

Group: Rhysida
Status: Listed for ransom
Country: Germany
Sector: Government
Listed on leak site: May 20, 2026

About the victim

AI dossier — public-source company profile

Stuttgart is the capital city of the state of Baden-Württemberg in southwestern Germany and one of the country's major metropolitan municipalities. As a city government, it administers a wide range of public services including administration, infrastructure, social services, and public records for its population of approximately 630,000 residents. The city operates numerous departments and agencies typical of a large German municipal authority.

Industry: Municipal Government
Address: Stuttgart, Baden-Württemberg, Germany

Attack summary

Severity: high — The target is a major German state capital and municipal government; exfiltration of government data at this scale likely includes sensitive PII of residents and employees, administrative records, and potentially regulated data, though no specific data volume or confirmed proof files are provided.

Rhysida claims to have obtained exclusive data from the City of Stuttgart and is auctioning it to a single buyer within a 7-day window, implying exfiltration of government data; no specific data volume or encryption claim is stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Government administrative records
Municipal employee data
Resident/citizen records
Internal city department files

What the group claims

Stuttgart is the capital city of Baden-Wurttemberg in southwestern Germany.

The leak post

captured from the group's site

Stuttgart is the capital city of Baden-Wurttemberg in southwestern Germany.
With just 7 days on the clock, seize the opportunity to bid on exclusive, unique, and impressive data. Open your wallets and be ready to buy exclusive data. We sell only to one hand, no reselling, you will be the only owner!
Tower View Primary School is an educational institution that serves approximately 380 pupils across 14 classes.
With just 7 days on the clock, seize the opportunity to bid on exclusive, unique, and impressive data. Open your wallets and be ready to buy exclusive data. We sell only to one hand, no reselling, you will be the only owner!
STELIA North America is an aerospace and defence company specializing in the design, development, and manufacturing of composites.10 TB of confidential data!Data from major partner companies, such as: Lockheed Martin, Northrop Grumman, Sikorsky, Leonardo, L3Harris, Airbus Atlantic, Boeing, Bombardier, De Havilland, ARDE, MDA.
Data Catalog: 9,3 Tb, 4 324 287 Files 
All files was uploaded to public access, data hunters, enjoy 
[Southold Town Senior ServicesSouthold Police Department](https://www.southoldtownny.gov)
The Town of Southold, New York provides var…

Sources

Leak posthttp://rhysidafc6lm7qa2mkiukbezh7zuth3i4wof4mh2audkymscjm6yegad.onion

Source

Indexed 23 hours 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.