Bayhealth Medical Center in Delaware has agreed to a preliminary settlement in a class action lawsuit following a 2024 ransomware attack by the Rhysida gang. The breach affected nearly 500,000 individuals, exposing sensitive personal and health information, and led to allegations of negligence and inadequate security practices. The lawsuit also claims Rhysida demanded a $1.4 million ransom and published stolen data on the dark web.

Mallory correlates global threat intelligence with your attack surface — know if you’re exposed before adversaries strike.
5 events from the most recent confirmed update back to the earliest known activity.
Bayhealth reached a preliminary settlement in the proposed class action tied to the 2024 Rhysida ransomware and data-theft incident. The settlement was reported in September 2025.
Bayhealth reported the incident to the U.S. Department of Health and Human Services as a HIPAA breach affecting 497,047 individuals. The filing stated that attackers had accessed the network and exfiltrated files.
In August 2024, plaintiffs filed a proposed class action lawsuit alleging negligence and invasion of privacy over the Bayhealth incident. The suit sought damages and injunctive relief requiring Bayhealth to improve security to industry standards.
Bayhealth said it detected suspicious activity in its environment on 2024-07-31, triggering its response to the ransomware and data-theft incident.
Bayhealth later determined that threat actors accessed its network between 2024-07-27 and 2024-07-31 and exfiltrated certain files. The incident was attributed in reporting and litigation to the Rhysida ransomware gang.
2 references tracked. Mallory keeps watching after this page renders.
Map indicators from this story to your assets and identify affected systems in minutes.
Every observed campaign, victim, and pivot linked to actors named in this story.
Malware, exploits, and IOCs connected to the activity described here.
YARA, Sigma, and Snort rules deployed to your SIEM as soon as they’re published.
Get matching new stories delivered to your team as they break — not the next morning.
Ask questions about this story and take action on the answers.