Explore our recent episodes


Root Causes 496: E2EE Gmail
Gmail is now end-to-end encrypted for all recipients, regardless of the receiving client. We explain how Gmail accomplishes this trick.


Root Causes 495: Trust Models and Post Quantum Cryptography
We build on our Trust Models discussion to explore how organizations can structure their PKI for the transition to post quantum cryptography (PQC).


Root Causes 494: Introduction to Trust Models
We explain the basics of trust models and compare various models including WebPKI, private CA, and consortium models.


Root Causes 493: Disentangling Public & Private Certificate Use…
Changing root store requirements mean CAs must separate their root hierarchies for different certificate types. We explain why enterprises should consider private CA for some use cases.


Root Causes 492: When Mandatory Security Training Sucks
In this episode we get excited about errors we see in mandatory security trainings.


Root Causes 491: RSA's Non-quantum Threat
We are rejoined by Dr. Michele Mosca to explore the potential threat of RSA being broken even in the absence of a quantum computing attack.

Why Root Causes?
Join the world’s most popular PKI and security podcast, Root Causes, where industry veterans Tim Callan and Jason Soroko unravel the complexities of PKI, online trust, and digital certificates. Root Causes is the first podcast of its kind, delving deep into the how and why of digital identity and the technology, practices, and regulations surrounding it. We share the latest developments in digital certificates, encryption, PKI, authentication, blockchain, malware, and much more.
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With new episodes every week, join us as we peel the onion on the fascinating world of PKI and digital ID.


Meet Tim and Jason
Tim Callan and Jason Soroko, pioneers at the forefront of PKI and Digital Trust innovation, combine decades of experience. Tim leads customer journey optimization and compliance efforts at Sectigo, while Jason drives product innovation, customer interaction, and industry standards alignment.
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