A ransomware group calling itself Blacknevas claims to have carried out an attack on Westbrook Greenhouse Systems (www.westbrooksystems.com), reportedly serviced by an IT company referred to as Computer C…, with the claim dated August 12, 2026. This information comes from an entry on the group’s own leak-site listing, which was tracked and archived by ransomware.live, a security research platform that monitors ransomware groups’ public extortion sites. At this stage, the claim has not been independently verified, and Westbrook Greenhouse Systems has not issued any public confirmation of a breach.
What we know — and don’t
- A group calling itself Blacknevas listed Westbrook Greenhouse Systems on its leak site, with a claimed date of August 12, 2026.
- Westbrook Greenhouse Systems appears to operate outside the finance, legal, education, healthcare, and retail categories, and is classified here under the general ‘other’ sector.
- The listing reportedly references an IT service provider identified only as Computer C…, though the full nature of that relationship has not been detailed or confirmed.
- The specific types of data the group claims to have obtained have not been disclosed in the listing and have not been confirmed by any independent source.
- No regulatory filing, breach notification, or statement from Westbrook Greenhouse Systems has been identified confirming this incident as of this writing.
What should you do if you have an account with this company?
- Change your password for any account associated with Westbrook Greenhouse Systems, and avoid reusing that password on other sites.
- Enable two-factor authentication wherever it is offered, on this account and on any others that share login credentials.
- Be cautious of unexpected emails, texts, or phone calls referencing this company, especially messages asking you to click links, verify account details, or make urgent payments.
- Monitor bank and credit card statements for unfamiliar charges, and consider placing a fraud alert with major credit bureaus if you notice anything suspicious.
- Since it is not yet known exactly what data, if any, may have been involved, consider using a service like a service like Aura or LifeLock for ongoing identity monitoring so you’ll be alerted quickly if your personal information turns up somewhere it shouldn’t.
- Keep an eye on official communications from Westbrook Greenhouse Systems for any updates or notifications regarding this claim.
BreachLetter will update this page if Westbrook Greenhouse Systems confirms this incident, if new details emerge from the group’s claims, or if the matter is officially reported to regulators.