Case Study
From Ransomware Crisis to Secure Infrastructure: Complete IT Rebuild for a Luxury Home Builder

Industry
Construction & Contracting
Company Size
10-50 employees
Location
Toronto, ON
The challenge
A Toronto-based construction firm discovered their previous IT provider had been compromised, exposing their systems to ransomware and leaving critical business operations at risk. The incident wasn’t just a technical failure—it threatened client trust, project timelines, and sensitive business data. They needed immediate containment to prevent further damage, expert assessment of what had been compromised, and a complete rebuild that would ensure this could never happen again. The challenge was doing all of this without disrupting ongoing projects or losing access to critical business files.
The solution
We began with immediate incident response, assessing the extent of the compromise and implementing containment strategies to prevent further damage. Once we understood what had been affected, we developed a comprehensive recovery and rebuild plan. The solution centered on our security-first approach based on the CIS framework—not just fixing what broke, but rebuilding infrastructure properly from the ground up. We replaced compromised hardware, reconfigured backup systems with proper air-gapping and immutability, deployed enterprise-grade endpoint protection across all devices, and implemented network segmentation to isolate critical business systems. Throughout the process, we maintained business continuity by carefully staging the transition, ensuring operations could continue while we rebuilt their infrastructure.
Results:
- Complete containment with zero data loss or ransom payment
- Full infrastructure rebuild using CIS framework security principles
- Enterprise-grade protection replacing inadequate previous solutions
- Business continuity maintained throughout the entire recovery process
- Renewed confidence in IT systems and security posture
Takeaways
- Your IT provider’s security is your security. When vendors are compromised, their clients become targets.
- Incident response speed matters. Immediate containment prevents minor breaches from becoming catastrophic losses.
- Proper backups are non-negotiable. Air-gapped, immutable backups mean ransomware becomes an inconvenience, not a crisis.
- Security can’t be bolted on later. Complete rebuilds provide the opportunity to implement proper security architecture from day one.
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