Disclosure context

About Medusa

Medusa, also known as MedusaLocker, is a financially motivated ransomware group that emerged in November 2022 and has since compromised 568 known victims across multiple countries. The group's origin and specific affiliations remain unclear from publicly available intelligence, though their operational patterns suggest they function as an independent ransomware operation rather than a documented Ransomware-as-a-Service model. Medusa primarily targets organizations in the United States, United Kingdom, Canada, Italy, and Australia, with a focus on business services, healthcare, manufacturing, and technology sectors, employing typical ransomware tactics including data encryption and likely exfiltration for double extortion purposes, though specific technical methodologies and initial access vectors have not been extensively documented in public threat intelligence reports. While the group has maintained a relatively high victim count since its emergence, detailed information about specific notable campaigns, high-profile victims, or major ransom demands has not been widely reported by major cybersecurity firms or law enforcement agencies. As of current intelligence assessments, Medusa appears to remain active in the threat landscape, continuing to target organizations across their established geographic and sectoral preferences. The group has been linked to 568 public disclosures across our corpus. First observed on a leak site on November 15, 2022; most recent post February 14, 2026. The operation is currently active.

Also tracked as: MedusaLocker.

Timeline of this disclosure

December 19, 2025Callipo Group listed by Medusaon the group's public leak site

Records: 500 Employees

Sector and geography

This disclosure adds to ransomware activity in the Agriculture and Food Production sector, which has 536 disclosures indexed across all operators we track. Geographically, Callipo Group is reported in Italy, a country with 496 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

Callipo Group

Claimed by Medusa · listed 5 months ago

500 Employees

Records

Age

since listed · data leaked

Status timeline

Listed
Dec 19, 2025
Data leaked

At a glance

Group: Medusa
Status: Data leaked
Country: Italy
Sector: Agriculture and Food Production
Listed on leak site: Dec 19, 2025
Records: 500 Employees

About the victim

AI dossier — public-source company profile

Callipo Group is an Italian food manufacturing company headquartered in Pizzo Calabro, Calabria, Italy, best known for producing canned tuna and other seafood products under the Callipo brand. Founded in 1913, the company is one of Italy's oldest and most recognised artisanal tuna producers, operating in both domestic and international markets. The group also has interests in hospitality and tourism assets in Calabria.

Industry: Food & Beverage Manufacturing (Canned Tuna & Seafood)
Employees: 201-500
Founded: 1913

Attack summary

Severity: high — The disclosure status is 'data_published', meaning Medusa has confirmed exfiltration and released data publicly. Even without a detailed inventory, a confirmed data publication by a prolific ransomware group against a known food manufacturer constitutes high severity due to likely inclusion of business-sensitive, financial, and employee PII data.

The Medusa ransomware group claims to have attacked Callipo Group and lists the disclosure status as data_published, indicating that exfiltrated data has been or is being published on their leak site. The specific categories of data at stake are not detailed in the truncated post due to a CAPTCHA block.

high

Data the group says was taken

AI dossier — extracted from the leak post

Internal business documents
Financial records
Employee information
Operational data

What the group claims

Callipo Group has been producing high-quality tuna and fish preserves in Italy for over 110 years. The company also produces and distributes renowned ice creams from Pizzo di Calabria, operates in the tourism and event sectors through the Popilia Country Resort, and is involved in agriculture for raw materials used in their products. Additionally, they manage frozen product storage and distribution and represent Calabria in national volleyball championships. Their diverse offerings cater to both local and international clients. The company headquarters is located in Callipo Group headquarters: Via Riviera Prangi 156, 89812 Pizzo, Vibo Valentia, Calabria, Italy. 201-500 Employees

The leak post

captured from the group's site

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Sources

Leak posthttp://xfv4jzckytb4g3ckwemcny3ihv4i5p4lqzdpi624cxisu35my5fwi5qd.onion/detail?id=471a424a82aeefad74f7147dcfca3eb3

Source

Indexed 5 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.