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

October 27, 2025Alissa Group listed by Medusaon the group's public leak site

Records: 378 Employees

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, Alissa Group is reported in Saudi Arabia, a country with 2 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

Alissa Group

Claimed by Medusa · listed 7 months ago

378 Employees

Records

Age

since listed · data leaked

Status timeline

Listed
Oct 27, 2025
Data leaked

At a glance

Group: Medusa
Status: Data leaked
Country: Saudi Arabia
Sector: Not Found
Listed on leak site: Oct 27, 2025
Records: 378 Employees

About the victim

AI dossier — public-source company profile

Alissa Group is an organization based in Saudi Arabia. No further details about its operations, scale, or sector could be verified from the leak post or a public website, as neither source provided substantive content.

Attack summary

Severity: medium — Data is reported as published by the operator, indicating confirmed exfiltration, but no details on data type, sensitivity, or scale are available to justify a higher severity rating.

The Medusa ransomware group claims to have attacked Alissa Group and has listed the disclosure status as data_published, suggesting exfiltration and potential publication of stolen data, though no specific data types or volume were stated in the available post content.

medium

What the group claims

Alissa Group established in the 1940s, by Abdulatif Alissa with a primary focus in textiles and food stuff trading, over the past decades, Alissa Group has developed into a diversified trading completed group. later , in the late 1940s, when the Kingdom was just trying to have a place for itself in the economy world map, Sheikh Abdullatif Al Issa noticed the enormous potential of this sector , so he started by panning a strategy includes diversifying the companys activities, trading in the global transportation sector as well as participating in the privet transportation sector. company is headquartered in 2nd Floor, The Building Behind McDonald’s (Al Tebian Tower), Olaya Street, Riyadh 11411, Saudi Arabia. 378 Employees

The leak post

captured from the group's site

Human Verify Human verification required We need to ensure you're a real person. Please solve the captcha below to continue. Verify

Sources

Leak posthttp://xfv4jzckytb4g3ckwemcny3ihv4i5p4lqzdpi624cxisu35my5fwi5qd.onion/detail?id=482f254f72bb02d641fa8c65a1190df1

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.