1. Rhysida is a Windows-based ransomware operation that has gained prominence since May 2023.
2. It has been linked to high-profile cyber attacks across Western Europe, North and South America, and Australia.
3. Rhysida is believed to have connections with the Vice Society ransomware gang.
4. The group has targeted various organizations, including hospitals, clinics, and even the Chilean Army.
5. Rhysida leaves behind PDF files as a sign of compromise and presents a “critical breach” alert as the ransom note.
6. Victims are required to visit the group’s dark web portal and pay a ransom in Bitcoin to obtain a decryption key.
7. The threats posed by Rhysida include the loss of data, the need to negotiate with attackers, and potential damage to a company’s brand and relationships.
8. Phishing attacks are a common method used by Rhysida to gain access to organizations.
9. Following best practices, such as secure backups, up-to-date security solutions, and educating staff about cyber risks, can help protect against ransomware attacks.