Summary
On October 8, 2025, the ransomware group Sinobi publicly claimed responsibility for an attack targeting
Tibbetts Lumber (www.tibbettslumber.com), a U.S.-based company specializing in construction materials.
According to the threat actor’s post, they intend to release sensitive data unless negotiations are initiated.
Incident Report
| Field | Details |
|---|---|
| Target | Tibbetts Lumber |
| Domain | www.tibbettslumber.com |
| Country | USA |
| Attacking Group | Sinobi |
| Date Reported | October 8, 2025 |
| Threat Actor Statement | “The full leak will be published soon, unless a company representative contacts us via the channels provided.” |
About Tibbetts Lumber
Tibbetts Lumber Co. is a leading provider of construction materials in Florida and the Caribbean, offering a wide range of residential building products including lumber, trusses, and millwork. Established in 1949, the company prides itself on delivering high-quality products at reasonable prices while fostering a family-centric work culture. Their services cater primarily to residential builders, providing manufactured trusses, installed trim, windows, and siding for new construction and remodeling projects. With a commitment to excellence and integrity, Tibbetts Lumber aims to serve its customers while honoring its legacy.
About Sinobi Group
The Sinobi group is a notorious ransomware gang known for targeting various industries across the globe. They operate by encrypting sensitive data and demanding ransom payments in exchange for decryption keys, often threatening to leak confidential information if demands are not met.
Proactive Response to Ransomware Threats
Organizations need to be proactive in defending against ransomware threats. Regular dark web monitoring can help detect potential data leaks early and mitigate risks. By using tools like the email breach checker at MSP Dark Intel, companies can keep an eye on their exposure and take necessary actions to protect their assets.
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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