Summary
On October 3, 2025, the ransomware group Devman publicly claimed responsibility for an attack targeting
Teeuwissen Services (teeuwissen.com), a Netherlands-based company specializing in services.
According to the threat actor’s post, they demand a ransom of 370k to prevent the release of 80GB of sensitive data.
Incident Report
| Field | Details |
|---|---|
| Target | Teeuwissen Services |
| Domain | teeuwissen.com |
| Country | Netherlands |
| Attacking Group | Devman |
| Date Reported | October 3, 2025 |
| Threat Actor Statement | “The full leak will be published soon, unless a company representative contacts us via the channels provided.” |
About Teeuwissen Services
Teeuwissen Services is a well-known company in the Netherlands, providing a range of services within its sector. The attack on its infrastructure is a significant concern, highlighting the ongoing threats faced by organizations worldwide.
About Devman Group
The Devman group is a notorious cybercriminal organization known for its sophisticated ransomware attacks, often targeting companies in various sectors to extort substantial ransoms.
Proactive Measures Against Ransomware
Organizations can take several proactive steps to mitigate the risks posed by ransomware attacks. Darkweb monitoring is crucial in detecting potential threats early. It is essential to stay informed about the latest tactics used by attackers and to adopt a comprehensive cybersecurity strategy. Additionally, using tools like the email breach checker can help keep an eye on potential breaches affecting your company.
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?
-
Check domain-wide breach exposure:
mspdarkintel.com/domain-breach-scan -
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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