The Rhysida ransomware group is a ransomware-as-a-service (RaaS) operation that emerged in 2023 and has since carried out a series of high-impact, targeted attacks. The group has been linked to intrusions affecting healthcare, education, manufacturing, and public sector organizations, often selecting victims where operational disruption creates strong pressure to pay.

Rhysida employs a double extortion model, encrypting systems while exfiltrating sensitive data and threatening public disclosure if ransom demands are refused. Initial access is commonly achieved through phishing campaigns, stolen credentials, or exploitation of exposed services, followed by hands-on-keyboard activity to move laterally and prepare systems for encryption.

From an operational standpoint, Rhysida focuses on precision rather than scale, relying on legitimate administrative tools to evade detection and disabling backups to limit recovery options.

Its activity reflects the continued effectiveness of targeted ransomware operations, particularly against organizations with limited visibility into lateral movement and data exfiltration.