Ransomware Group: MEDUSA

VICTIM NAME: Presort First Class

NOTE: No files or stolen information are [exfiltrated/downloaded/taken/hosted/seen/reposted/disclosed] by RedPacket Security. Any legal issues relating to the content of the files should be directed at the attackers directly, not RedPacket Security. This blog is simply posting an editorial news post informing that a company has fallen victim to a ransomware attack. RedPacket Security is in no way affiliated or aligned with any ransomware threat actors or groups and will not host infringing content. The information on this page is fully automated and redacted whilst being scraped directly from the MEDUSA Onion Dark Web Tor Blog page.

AI Generated Summary of the Ransomware Leak Page

The ransomware leak page pertains to Presort First Class, a company specializing in design, print, and mail services. The company’s corporate office is located in Oklahoma City, Oklahoma, United States, and employs approximately 85 staff members. The data breach involved the unauthorized disclosure of approximately 279.30 GB of sensitive information, indicating a significant leak of confidential business data. The attack was discovered on June 1, 2025, and the attack date is reported as May 27, 2025. The incident description suggests that the leak includes internal information, possibly including operational details and company data that could impact the business’s integrity and security.

The leak was claimed by the threat group known as “medusa,” which is recognized for conducting large-scale data extortion operations. The ransom amount demanded by the attackers is set at $100,000. The page includes a screenshot related to the incident, providing visual evidence of the breach. No specific evidence of stolen credentials or infostealer activity was indicated, but the presence of extensive data leaks implies a serious cybersecurity incident. The leak is accessible via a dark web link, and the breach contains a substantial volume of corporate information, which highlights the severity of the intrusion and the potential threat to the company’s operations and reputation.