City of Napoleon Ransomware Claim by Qilin (Apr 2026)

Claim Summary

The Qilin ransomware group has allegedly claimed responsibility for a cyberattack targeting the City of Napoleon, Ohio. According to a post on the group’s leak site dated April 23, 2026, the threat actor asserts it has compromised the municipality’s network. The City of Napoleon operates the domain www.napoleonohio.com and is a public sector entity in the United States. As of this report, no data samples, screenshots, or specific file listings have been provided to substantiate the claim. The volume of allegedly stolen data remains undisclosed. This information has not been independently verified by Yazoul Security.

Threat Actor Profile

Qilin (also tracked as Agenda) is a ransomware-as-a-service (RaaS) group first observed in 2022. The group is known for targeting a wide range of sectors, with a particular focus on healthcare, education, and government entities. According to available intelligence, Qilin has claimed 1,617 victims to date, suggesting an aggressive and persistent operational tempo.

The group’s known toolset includes:

• Credential theft: Mimikatz
• Defense evasion: EDRSandBlast, PCHunter, PowerTool
• Network reconnaissance: Nmap, Nping
• Data exfiltration: EasyUpload.io, MEGA

Qilin has historically demonstrated a willingness to leak data when ransom demands are not met. The group’s credibility is moderate to high based on its victim count and operational history, though individual claims should always be treated with skepticism until verified. The group has been linked to custom PowerShell scripts for propagation and has shown capability in targeting VMware vCenter and ESXi environments, as noted in Trend Micro research.

Alleged Data Exposure

At this time, Qilin has not published any specific data samples, file lists, or evidence of exfiltration. The claim is limited to a generic leak site post. Without supporting data, the scope and nature of any alleged breach remain unknown. It is possible the group is attempting to pressure the City of Napoleon into negotiations before releasing evidence. Alternatively, the claim may be opportunistic or exaggerated.

Potential Impact

If confirmed, this incident could have significant implications for the City of Napoleon, including:

• Operational disruption: Potential downtime of municipal services, including utilities, permits, and public records access.
• Data breach: Exposure of sensitive citizen data, employee records, or internal communications.
• Regulatory consequences: Potential violations of state data breach notification laws and federal guidelines for public sector entities.
• Financial costs: Ransom payment demands, forensic investigation, system restoration, and legal fees.

The public sector is a high-value target for ransomware groups due to the critical nature of services and the potential for disruption to cause widespread impact.

What to Watch For

• Leak site updates: Monitor Qilin’s leak site for any subsequent posting of data samples or file lists. The absence of evidence may indicate a bluff or ongoing negotiations.
• Official statements: The City of Napoleon may issue a public statement or file a data breach notification. Check the city’s official website and local news outlets.
• Network indicators: Organizations in similar sectors should review Qilin’s known TTPs, including use of Mimikatz for credential dumping and EDRSandBlast for defense evasion. Monitoring for unusual PowerShell activity or connections to MEGA or EasyUpload.io may be prudent.
• Detection guidance: While no specific YARA rules are available for this claim, defenders can reference Secureworks’ threat profile for Qilin (Gold Feather) and Google Cloud’s analysis of UNC3944 for broader detection strategies. Network defenders should also review Trend Micro’s research on Agenda ransomware propagation to vCenter and ESXi environments.

Disclaimer

This report is based solely on an unverified claim posted by the Qilin ransomware group on their dark web leak site. Yazoul Security has not independently confirmed the validity of this claim, the extent of any data compromise, or the identity of the threat actor. Ransomware groups routinely exaggerate or fabricate claims to pressure victims. No PII, credentials, download links, or access information is included in this report. All information should be treated as preliminary and subject to change upon official confirmation or further investigation.