

Meet The Data Dexter
Hi, I’m Niall O’Sullivan, also known as The Data Dexter—your trusted expert in data protection, GDPR compliance, ISO 270001 and regulatory best practices.
With a background in technology and compliance, I help businesses navigate GDPR, protect personal data, and avoid costly fines. As a Certified Data Protection Professional, I’ve worked with organisations of all sizes to simplify compliance, prep for ISO 270001 assessments, carry out risk assessments, and implement practical solutions that ensure businesses meet their legal obligations.
I know that data protection compliance can seem daunting, but it doesn’t have to be. My aim is to take the hassle out of compliance, providing clear, straightforward guidance so you can focus on running your business with confidence.
Let’s work together to secure your business and build trust with your customers. Ready to get started?
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Certified Member of:
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ADPO - Association of Data Protection Officers, Ireland
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ICS - Irish Computer Society

Make Your Business GDPR Compliant & Risk-Free
I help businesses secure their data, ensure compliance with GDPR, and protect against legal risks. Whether you’re a startup or an established company, our tailored audits and expert guidance make compliance easy.
GDPR Compliance Audit
A full review of your data processing activities to ensure GDPR compliance. Identifying gaps, reduce risk, and help you avoid costly penalties.
Data Breach Risk Assessment & ISO 270001 Preparation
Assess your current security policies and data handling processes to identify vulnerabilities before they turn into costly data breaches. This will prepare businesses to reach ISO 270001 standard.
Data Protection Officer (DPO) Services
Outsource your DPO role to a certified expert who will monitor compliance, train staff, and handle regulatory requirements for your business.
GDPR Staff Training & Policy Draft &
Implementation
Empower your team with GDPR best practices. We offer training sessions and create data protection policies that align with compliance requirements.

Your Data, Your Responsibility – Stay Compliant & Secure.
The Data Dexter simplifies GDPR compliance so you don’t have to worry about fines or security breaches. Offering tailored audits, risk assessments, and expert guidance ensure your business stays legally protected while keeping customer data safe.
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What We Do:
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GDPR Compliance Audits – Find and fix compliance gaps
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Data Protection Officer (DPO) Services – Let an expert handle GDPR for you
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Breach Risk Assessments & ISO 270001 Preparation – Identify vulnerabilities before they become problems
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Staff Training & Policy Implementation – Make GDPR part of your company culture
Don’t wait for a data breach to take action. Secure your business now!


Take a look at the numbers:
7K+
Data breaches in 2023
€2M+
Potential fines
20%
Annual increase in claims
€3.5B
In fines since 2018 in Ireland






