
Knowledge base
September 02, 2025
Preventing Data Breaches – ISO 27001 Approach
Why preventing data breaches is crucial
In the Netherlands, 1 in 5 SMEs face a data breach every year. The consequences are often disastrous: high fines from the Personal Data Authority (AP), reputation damage and loss of customer trust. Since the introduction of the AVG legislation, compliance is no longer an option, but an absolute requirement for every organization.
At ALTA-ICT, we understand that cybersecurity and data breach prevention are not only about technology, but also about human behavior and strategic choices. With our ISO27001 and NEN7510 certified approach, we help Dutch organizations prevent data breaches and ensure business continuity.
In this article, you’ll discover what data breach prevention entails, how your organization can implement it step by step, what pitfalls to avoid, and how to realize a demonstrably higher ROI with ALTA-ICT.
What is data breach prevention and why essential for Dutch companies?
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Definition of a data breach
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Dutch context: AVG, mandatory data breach notification within 72 hours, AP oversight
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Impact for SMEs, healthcare, financial institutions and government
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Common misconception: “a firewall is enough”
How to prevent data breaches – Implementation in 4 steps
Step 1: Assessment & risk analysis
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Security audit
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Privacy Impact Assessment (PIA).
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AVG/GDPR compliance check
Step 2: Design & preparation
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Technical architecture (encryption, access management)
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Awareness training for employees
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Change management process
Step 3: Implementation & monitoring
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24/7 SOC monitoring
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Real-time threat detection
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Phased rollout without downtime
Step 4: Optimization & maintenance
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Periodic penetration testing
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Certification audits (ISO27001/NEN7510)
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Continuous improvement with ALTA-ICT’s methodology
Common mistakes in data breach prevention
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Deploying only technical solutions without awareness
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Not having an incident response plan ready
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Late reporting to the AP
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Not conducting periodic audits
ROI of data breach prevention for SMEs
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Cost of a data breach in NL averages €100,000+
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ALTA-ICT customers reduce risk by >70%
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Case: SME client Amsterdam saved €45,000 per year through preventive approach
The ALTA-ICT approach: why we make a difference
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ISO27001, ISO9001 and NEN7510 certified
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Dutch market specialization (AVG, DigiD, AP guidelines)
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24/7 monitoring & support
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Customized security awareness trainings
FAQ – Data breach prevention in the Netherlands
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What is a data breach under the AVG?
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What are the AP’s fines?
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How soon should I report a data breach?
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What certifications are mandatory in NL?
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How does ALTA-ICT help with compliance?
Conclusion
Preventing data breaches is not a luxury, but a must-have for Dutch organizations. With a certified approach, real-time monitoring and awareness training, ALTA-ICT helps your organization minimize risk and maintain trust.
👉 Book a free consultation today: alta-ict.co.uk/free-consultation
Reference
¹https://www.linkedin.com/posts/altaict_altaict-cybersecurity-avg-activity-7359905018344263680-wSL5
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