Clinical Registry Solutions Ransomware by Akira (May 2026)

Claim Summary

The Akira ransomware group has allegedly claimed responsibility for a cyberattack against Clinical Registry Solutions (CRS), a New York-based healthcare data management company. According to the threat actor’s leak site, the incident occurred on May 6, 2026. The group claims to have exfiltrated 41GB of corporate data, which they threaten to release publicly. CRS, formerly operating as Cardiac Registry Support, provides clinical data abstraction, medical record abstraction, and registry support services to hospitals, health systems, contract research organizations, and clinical staffing firms across the United States and Canada.

Threat Actor Profile

Akira is a ransomware group that emerged in early 2023 and has since established a reputation for targeting mid-to-large enterprises, particularly in the healthcare, education, and manufacturing sectors. The group operates a ransomware-as-a-service (RaaS) model and is known for using a double extortion tactic - encrypting systems while exfiltrating sensitive data to pressure victims into paying.

Based on available intelligence, Akira’s known toolset includes:

• Credential theft: DonPAPI, LaZagne, Mimikatz
• Privilege escalation and defense evasion: PowerTool, ThrottleStop driver, Zemana Anti-Rootkit driver
• Network reconnaissance: Advanced IP Scanner, Advanced Port Scanner

The group’s credibility is moderate. While they have successfully compromised numerous organizations, their claims should be treated with skepticism until independently verified. Akira has been known to exaggerate data volumes and victim lists to increase pressure on targets. However, their operational security and encryption capabilities are well-documented in the cybersecurity community.

Alleged Data Exposure

According to the leak site post, Akira claims to have stolen 41GB of data from Clinical Registry Solutions. The threat actor alleges the stolen data includes:

• Detailed employee personal information (passports, driver’s licenses, Social Security numbers, health information, and other documents)
• Client documents and personal information
• Financial records and payment details
• Contracts, agreements, and non-disclosure agreements (NDAs)

The data volume of 41GB, if accurate, suggests a significant breach of CRS’s internal systems. The inclusion of client documents and personal information is particularly concerning given CRS’s role as a healthcare data management provider.

Potential Impact

If the claim is verified, the impact on Clinical Registry Solutions could be severe:

• Regulatory exposure: As a healthcare data handler, CRS may be subject to HIPAA regulations. A breach involving patient health information could result in substantial fines and legal liabilities.
• Client trust erosion: Healthcare organizations and research firms that rely on CRS for data management services may reconsider their partnerships, potentially leading to revenue loss.
• Reputational damage: Public disclosure of sensitive client and employee data could harm CRS’s standing in the healthcare data management industry.
• Operational disruption: While the group has not claimed encryption, the exfiltration alone could require significant resources for incident response, forensic investigation, and notification processes.

What to Watch For

• Data leak timeline: Akira has stated they will upload the data “soon.” Monitor for any public release of the alleged 41GB archive.
• Client notification: Healthcare organizations and research firms that work with CRS should verify if their data is affected and prepare for potential notification obligations.
• Employee monitoring: Current and former CRS employees should watch for signs of identity theft or phishing attempts targeting their personal information.
• Regulatory updates: The U.S. Department of Health and Human Services (HHS) Office for Civil Rights may open an investigation if protected health information is confirmed compromised.

For general guidance on ransomware incident response, refer to Yazoul Security’s advisory at /advisory/ransomware-response/.

Disclaimer

This report is based on unverified claims made by the Akira ransomware group on their dark web leak site. Yazoul Security has not independently verified the authenticity of the data, the extent of the breach, or the accuracy of the threat actor’s statements. Ransomware groups routinely exaggerate or fabricate claims to pressure victims into paying ransoms. This information is provided for intelligence purposes only and should not be acted upon without further verification from Clinical Registry Solutions or authorized cybersecurity investigators.