Timothy Hollebeek

Timothy Hollebeek

Industry Technology Strategist | DigiCert

Timothy Hollebeek has more than 20 years of computer security experience, including eight years working on innovative security research funded by the Defense Advanced Research Projects Agency. He remains heavily involved as DigiCert’s primary representative in multiple industry standards bodies, including the CA/Browser Forum, striving for improved information security practices that work with real-world implementations. A mathematician by trade, Hollebeek spends a lot of time considering security approaches to quantum computing.

39 Stories
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PQC Migration Field Guide Blog Hero
RFC 9958: A field guide to post-quantum cryptography migration
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Why Shorter Certificate Lifetimes Matter
Why Shorter Certificate Lifetimes Actually Matter
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Warsaw Blog CABF Hero
Insights from the CA/Browser Forum’s Warsaw Discussions
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DigiCert Blog Easier DNS Hero
A New DNS Validation Method for Simplified Certificate Automation
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WQRD Award Blog Hero
2 Award-Winning Approaches to Enterprise Quantum Security  
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EKU Removal X9 Blog Hero
PKI 05-15-2025
How the ClientAuth Crackdown Is Pushing Finance Toward X9 PKI  
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Beyond Certificates Blog Hero Image
Why Certificate Automation is an Absolute Must
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The NIST standards for quantum-safe cryptography
The NIST Standards for Quantum-safe Cryptography
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