About Cyvion & Jeffrey Appel
Cyvion is an independent cybersecurity company based in the Netherlands, founded by Jeffrey Appel. We help organizations turn Microsoft Security into practical, effective protection.
Built from experience
Cybersecurity looks different from the outside than it does in the real world.
After years of working with enterprises, consulting firms, and complex security environments, Jeffrey founded Cyvion with a clear belief: security should be practical, understandable, and focused on what actually matters.
“Technology alone doesn’t improve security. People do”
At Cyvion, cybersecurity is personal, practical, and built on real experience, where technology and people come together.
About Jeffrey Appel
Independent Microsoft Security Expert
Jeffrey Appel is a Microsoft Most Valuable Professional (MVP) and security specialist based in the Netherlands, specializing in Microsoft Defender, Azure, and enterprise security solutions. With a strong focus on practical, real-world security, Jeffrey helps organizations protect their digital environments against modern cyber threats through hands-on expertise and clear, actionable guidance.
Having worked with both large enterprises and smaller organizations, Jeffrey brings a balanced perspective on designing and implementing scalable security strategies that fit organizations of any size.
Jeffrey has been a Microsoft Most Valuable Professional (MVP) since 2022 and a Microsoft Valuable Security Researcher (MVR) since 2023.
Empowering people
At Cyvion, it is not just about implementing tools and security products – it’s about empowering people.
We believe security works best when it’s understood, owned, and actively used by the teams who rely on it every day. That’s why our approach is highly personal and hands-on, with a strong focus on long-term knowledge transfer rather than one-time implementation.
Through clear guidance and continuous knowledge sharing, we help your organization build lasting security capabilities so you stay in control long after we step away. Not just knowing that something is configured, but understanding what is configured and why.
Cyvion empowers your teams to own Microsoft Security, not just use it.
Ready to get more from Microsoft Security?
Turn Microsoft Security into practical, effective protection with guidance from Microsoft MVP and Security Researcher Jeffrey Appel.