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EPISODE 525
Broadcast Date:
September 10, 202510 minutes
Podcast Sep 10, 2025Root Causes 525: The End of Email-based DCV
A new CABF ballot proposal will eliminate all email- and phone-based DCV over the next few years. We go into the details.
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DV vs OV vs EV SSL certificates
Blog Post from Sectigo
Blog Post Nov 05, 2024DV, OV, and EV SSL certificates offer varying security levels. EV is ideal for sensitive data, OV suits small businesses, and DV provides basic encryption.
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EPISODE 428
Broadcast Date:
October 4, 202417 minutes
Podcast Oct 04, 2024Root Causes 428: .MOBI Attack Puts WHOIS-based DCV into Question
White hat researchers managed to take over WHOIS for the .mobi TLD, foretelling the death of WHOIS as an email source for Domain Control Validation (DCV).
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EPISODE 371
Broadcast Date:
March 22, 202420 minutes
Podcast Mar 22, 2024Root Causes 371: MPIC Rules Go to CABF Ballot
A ballot for Multi-perspective Issuance Corroboration (MPIC), formerly known as MPDV, has entered a discussion period in the CA/Browser Forum (CABF).
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EPISODE 359
Broadcast Date:
February 2, 202416 minutes
Podcast Feb 02, 2024Root Causes 359: 90-day SSL Won't Affect Organization Validation
With 90-day maximum term is coming for SSL certificates, we explain why we do not expect a reduction in the reuse period for organization validation.
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Modifications to Available File-Based Methods of DCV
Blog Post from Sectigo
Blog Post Sep 07, 2021In compliance with pending policy changes by CA/B Forum ballot SC45; Sectigo will update the circumstances under which it can employ file-based DCV.
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EPISODE 181
Broadcast Date:
August 30, 202113 minutes
Podcast Aug 30, 2021Root Causes 181: Limitation of DCV Through Web Site Changes
Domain Control Validation (DCV) for SSL certificates using the "change to web site" method will be changing late this year. We explain these changes.
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Sectigo to Remove Brand Information from DV Certificates
Notification from Sectigo
Notification Dec 12, 2019Sectigo recently announced that we will make a change to our issuance practices to remove “static” brand and hosting information from the OU fields of our Domain Validation (DV) certificates. These descriptors include the brand name of the certificate (e.g. “PositiveSSL”) and the name of the hosting provider (e.g. “Hosted by NAME”).
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How Let's Encrypt Runs CT Logs
Blog Post from Sectigo
Blog Post Nov 25, 2019[This guest post originally ran on Let’s Encrypt’s blog on Nov 20, 2019.] Let’s Encrypt launched a Certificate Transparency (CT) log this past spring. We’re excited to share how we built it in hopes that others can learn from what we did. . . Sectigo and Amazon Web Services generously provided support to cover a significant portion of the cost of running our CT log.
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Blog Post Oct 10, 2019
Hidden Price Tag of Free DV SSL Certificates
Learn the advantages & disadvantages of free DV Certificates, and why commercial Domain Validation Certificates are worth your money.
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EPISODE 39
Broadcast Date:
September 26, 201920 minutes
Podcast Sep 26, 2019Root Causes 39: New University Research on Phishing and Certificates
The majority of phishing sites now use SSL certificates to closely imitate the behavior of legitimate sites. Join our hosts as we dig into these findings.
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Sectigo Product Guide
Whitepaper from Sectigo
Whitepaper Apr 23, 2019Whether implementing a single solution or a multi-layered approach, Sectigo’s diverse range of web security products deliver a full spectrum of protection.
