Explore our recent episodes


Root Causes 500: OMG! 500 Episodes of Root Causes!
Wow. It's episode 500 of Root Causes. Jason and Tim talk about how the podcast has evolved in the past six years, how it has remained consistent, and the updates we're making to keep being a valuable resource for our listeners.


Root Causes 499: Don't Blame Signal


Root Causes 498: UK NCSC PQC Guidance
The UK National Cyber Security Centre (NCSC) has released new PQC guidance. We take exception to the dates it gives and explain why.


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.

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.
Over 500,000 listens
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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