Featured Contributor
Tim Callan
Chief Compliance Officer at Sectigo
As Chief Experience Officer, Tim Callan leads efforts to optimize the customer journey across all aspects of the business. Tim has more than 20 years of experience as a strategic marketing and product leader for successful B2B software and SaaS companies, with 15 years of experience in the SSL and PKI technology spaces.
Tim Callan has over 20 years of experience in the SSL and PKI technology spaces. Tim leads Sectigo's conformance with industry and regulatory requirements including browser root programs, WebTrust, CA/Browser Forum, and more. Tim is instrumental in driving initiatives to improve certificate agility and successful issuance. A founding member of the CA/Browser Forum and current vice-chair for one of its working groups, Tim is creator and co-host of Root Causes: A PKI and Security Podcast, the world’s most popular podcast dedicated to digital certificates. With 400+ episodes published, Tim is on the forefront of explaining trends that will be essential to the IT professionals, including shortening certificate lifespans and the coming change to post-quantum cryptography.
Recent Posts from Tim Callan
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A live webinar hosted by Sectigo.
60 minutes
Webinars Upcoming47-Day TLS: shorter certificate lifespans everywhere
Join us for our quarterly Sectigo Pulse webinar, where we cover the latest product & compliance news & how these events might impact you & your business.
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EPISODE 440
Broadcast Date:
November 18, 202413 minutes
Podcasts Nov 18, 2024Root Causes 440: Public Key Directories
We talk about public key directories and complicating factors such as Tailscale, VPN, TOR, Cloudflare, and Zero Trust.
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EPISODE 439
Broadcast Date:
November 15, 202417 minutes
Podcasts Nov 15, 2024Root Causes 439: PQC Onramp Narrowed Down to 15 Candidates
NIST has narrowed its PQC onramp contest to 15 candidates. We go over who remains and the makeup of the remaining candidates.
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EPISODE 438
Broadcast Date:
November 12, 202428 minutes
Podcasts Nov 12, 2024Root Causes 438: PQC Is an Existential Requirement
Repeat guest Bruno Couillard argues that cryptography is foundational to our lives and that the transition to PQC is an existential requirement.
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60 minutes
Webinars Oct 31, 2024Q4 2024 Pulse Webinar
Join us for our quarterly Sectigo Pulse webinar, where we cover the latest product and compliance news and how these events might impact your business.
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EPISODE 436
Broadcast Date:
October 29, 202410 minutes
Podcasts Oct 29, 2024Root Causes 436: Formal Proofs
Formal proofs are critical to cryptography. We discuss how better processes and AI can accelerate formal proofs of cryptographic concepts.
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EPISODE 435
Broadcast Date:
October 25, 202419 minutes
Podcasts Oct 25, 2024Root Causes 435: The PQC "Q Day" Is Not That Simple
We explain how radically oversimplified the concept of PQC "Q day" really is.
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EPISODE 434
Broadcast Date:
October 22, 202412 minutes
Podcasts Oct 22, 2024Root Causes 434: Did Researchers Break AES Using Quantum Annealing?
Reports suggest Chinese researchers used a quantum annealing computer to break AES. We clarify the findings and discuss the potential implications.
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EPISODE 433
Broadcast Date:
October 17, 202410 minutes
Podcasts Oct 17, 2024Root Causes 433: Will AI Eat All the Electricity?
News reports claim Chinese researchers broke AES with a quantum annealing computer. We clarify the details and talk about the implications of this reported discovery.