ITU's 160 anniversary

Connecting the world and beyond

Programme

​​​​​​​​​​​​​​​​​​​​​Fourth ITU-T X.509 Day

Fully Virtual, 5 September 2025

Contact: tsbevents@itu.int


13:00 - 13:10
​Opening remarks

Master CeremonyHoney Makola 
​13:10 - 13:30
​​Keynote :  X.509 in 2025: Navigating the post-quantum era
This keynote will provide a high-level overview of how the X.509 standard is evolving to meet current challenges (PQC readiness, decentralized trust, etc.) and the vision for its future.
​13:30 - 14:00
Session 1: ​Thematic presentations
​14:00 - 14:50
Session 2: ​Examples of ITU-T X.509 adoption / implementation
​​14:50 - 15:30
Session 3: ​​Panel discussion - Building resilient trust infrastructures

Moderator: Hoyt L Kesterson II​, Senior Security & Risk Architect, CNC Consulting
15:30 - 15:45
​Interactive Q&A and Open floor discussion
​15:45 - 15:50
​Summary and Closing

​​