Summary
On October 6, 2025, the ransomware group Akira publicly claimed responsibility for an attack targeting Milliman Financial Risk Management LLC (milliman.com), a U.S.-based global leader in financial risk management. According to the threat actor’s post, they intend to release 260GB of sensitive data unless negotiations are initiated.
Incident Report
| Field | Details |
|---|---|
| Target | Milliman Financial Risk Management LLC |
| Domain | milliman.com |
| Country | USA |
| Attacking Group | Akira |
| Date Reported | October 6, 2025 |
| Threat Actor Statement | “We are going to upload 260GB of corporate data soon. Client information, internal files, financial documents, contracts, and more.” |
About Milliman Financial Risk Management LLC
Milliman Financial Risk Management LLC is a subsidiary of Milliman, Inc., providing global leadership in financial risk management to the retirement savings industry. Established in 1998, it operates from three key trading platforms: Chicago, London, and Sydney.
About the Akira Group
The Akira ransomware group is known for targeting high-profile organizations, often demanding significant ransoms for data decryption and refraining from data leaks.
Proactive Response to Ransomware Threats
To effectively counter such threats, organizations should implement proactive measures such as dark web monitoring. It’s crucial to stay informed about potential data breaches and leaks. Utilize tools like the Email Breach Checker to monitor your company’s exposure and safeguard sensitive information.
Recommendations
- Monitor your domains and email addresses for exposure using reputable threat intelligence tools.
- Conduct a full compromise assessment and incident response drill internally.
- Verify backups and ensure they are offline and ransomware-resistant.
- Educate staff on phishing, social engineering, and lateral movement techniques used by groups like Qilin.
- Engage with cyber forensics and legal counsel before initiating contact with threat actors.
Check Your Exposure
Wondering if your organization or employees are impacted by recent breach activity?
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Check domain-wide breach exposure:
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Check if an email was breached:
mspdarkintel.com/email-breach-scan
Disclaimer
The MSPDarkIntel team does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information.
All breach data reported here is sourced from publicly available threat intelligence feeds for awareness and early-warning purposes only.
Our goal is to inform organizations of emerging threats so they can take timely defensive action.
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