DigiCert Revoked G2/G3 ICAs: Is Your Site Affected?
DigiCert revoked multipurpose G2 and G3 intermediate CAs on May 15, 2026 to meet Chrome's dedicated TLS hierarchy rules. Check if your certs are affected.
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Public mTLS Certs End May 1: Your Migration Guide
Sectigo and DigiCert stop issuing public TLS certs with clientAuth EKU on May 1, 2026. Chrome enforces June 15. Here's how to migrate before your mTLS breaks.
Critical wolfSSL Flaw Lets Attackers Forge TLS Certificates
A critical wolfSSL bug (CVE-2026-5194) lets attackers forge TLS certificates accepted by 5 billion devices. wolfSSL 5.9.1 fixes it — here's what to do now.
October 2026: The First 200-Day SSL Cert Expiration Wave
Experts warn October 1, 2026 could trigger widespread outages as the first 200-day SSL certificates expire. Research shows 40% of enterprises aren't ready.
DigiCert G1 Root CA Distrust: Act Before April 15
Chrome and Firefox distrust DigiCert's G1 root CA on April 15, 2026. Azure, Oracle, and others are already migrating. Here's what your organization must do.
Sectigo Signing Delays Hit Namecheap SSL Customers
Sectigo's signing servers went down on March 22, stalling SSL issuance for Namecheap users. As 200-day certs double renewal demand, CAs face new pressure.
Cisco Duo CA Expiry: Update Required by March 31
Cisco Duo's CA bundle expires March 31, 2026. Organizations using Duo MFA risk complete authentication lockouts if they don't update their software now.
Expired SSL Certificate Took Down Google Bazel for 13 Hours
An expired SSL certificate caused a 13-hour Google Bazel outage in December 2025. With 200-day certs starting March 15, 2026, here's why this matters to you.
Cloudflare 1.1.1.1 Certificate Scare: Unauthorized Issuance
Learn how unauthorized SSL certificate issuance for Cloudflare's 1.1.1.1 was detected via SSLboard, highlighting challenges in reporting security vulnerabilities.
No False Alerts: How SSLboard Ensures SSLcalendar Accuracy
Learn how SSLboard powers SSLcalendar with zero false positives, distinguishing used certificates via Certificate Transparency monitoring.
Public TLS Client Certificates: Sunset on June 15, 2026
Learn about the deprecation of public TLS client certificates. Chrome stops trusting them June 15, 2026—discover alternative authentication methods.
The Path to 47 Days: SSL Certificate Lifetimes Are Shrinking
Explore the timeline reducing SSL/TLS certificate validity from 398 days to 47 days by 2029, enhancing web security through shorter lifespans.
SSL Calendar Launch: The Perfect Tool for Certificate Tracking
Discover SSL Calendar, which uses familiar calendar interfaces to track SSL certificate expirations, combating tool fatigue with intuitive monitoring.