24/7 cyber resilience for a 170-year-old construction business

KlaassenGroep relies on digital planning, contracts, and communication to keep large housing projects moving. A single ransomware incident could stop work, delay deliveries, and put already tight margins under pressure. The company chose Eye Security to gain continuous detection and response, integrated cyber insurance, and a cyber-aware workforce.

cybersecurity in construction - case study - KlaassenGroep

Customer

KlaassenGroep

Industry

Construction

Employees

1,250

Country

Netherlands

Construction at scale, supported by IT

KlaassenGroep is a family-run construction company that delivers large-scale housing projects from initial design to completion. Today, tender documents, drawings, contracts, planning, and subcontractor communication all run through digital systems.

This makes delivery faster and predictable, but it also means the business depends on the availability and integrity of its IT environment.

With this in mind, the company began exploring cyber insurance policies offered by their broker. Eye Security’s combination of cyber insurance and continuous monitoring (powered by CrowdStrike) stood out as exactly what Ter Haar was seeking.

"When a construction company is affected by a cyber incident, the work on site can continue for a while, but eventually so many digital processes are involved that things come to a standstill."
Marco ter Haar
IT Director

Why cybersecurity moved to the top of the agenda

Security had always been on KlaassenGroep’s agenda, but rising ransomware cases in the media and a serious incident at a local company brought the risk closer to home.

Standard controls were in place, but the company wanted more certainty that a serious incident would be detected early and contained quickly. With tight margins in construction, any disruption that stops digital processes becomes a direct risk to revenue and reputation.

KlaassenGroep began exploring cyber insurance through its broker. During this process, Eye Security’s approach stood out: combining cyber insurance with continuous monitoring and response, delivered as a single, integrated solution. The construction industry has been especially hard-hit by rising prices. Eye Security’s holistic, proactive approach hit the sweet spot of cost and benefit.

"We balanced Eye Security’s costs against the value they would bring and the ROI stood up to scrutiny. The solution we now have in place prevents incidents and works with proven EDR and AI technology, which gives us peace of mind."
Marco ter Haar
IT Director

From fragmented controls to complete protection: 24/7 MDR plus insurance and awareness

Together with KlaassenGroep’s broker, Eye Security designed a protection stack that matched the company’s risk profile and budget.

  • Managed XDR, powered by leading EDR and AI detection technology
  • Cyber insurance, aligned with the technical controls in place
  • Security awareness training with regular phishing simulations

Implementation was done in close collaboration with KlaassenGroep’s existing IT partner. This avoided duplication of effort and ensured that monitoring integrated smoothly with the current infrastructure.

"We really have managed to raise awareness among colleagues and reduce the risk of incidents."
Marco ter Haar
IT Director

KlaassenGroep now regularly informs and trains its employees with tests such as phishing simulations so that the workforce stays aware.

Defence at every access point: building resilience into day-to-day operations

For KlaassenGroep, effective cybersecurity in construction means more than just technology. It is about keeping projects moving, even when there is pressure on the network or an attacker tries to get in.

Eye Security’s MDR detects and investigates suspicious activity around the clock. If a threat is confirmed, Eye’s 24/7 SOC intervenes quickly, contains the incident, and guides remediation steps so that impact on projects stays limited.

Meanwhile, ongoing security awareness programmes keep employees alert to social engineering attempts. This reduces the number of incidents that reach the technical layers of defence and gives colleagues a playbook when something looks suspicious.

The combination of continuous monitoring, clear processes, and an insured backstop allows KlaassenGroep to focus on delivering projects, knowing that their digital foundation is actively defended.

Challenges

  • Reducing the risk of operational downtime that could impact projects, customers, and business continuity.
  • Finding a cybersecurity solution that balanced robust protection with cost-effectiveness.
  • Improving employee awareness of phishing and cyber risks.

Results

  • Strengthened cyber resilience across critical business systems and digital construction processes.
  • Gained access to cyber insurance alongside proactive cybersecurity protection in a single solution.
  • Increased confidence in the organisation’s ability to prevent, detect, and respond to cyber threats.

Industry context

75%

of construction firms experienced a cyber incident in the last 12 months

93%

of cyber attacks in construction start with a phishing campaign

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