Podcast
Root Causes 658: The trouble with X9 certificates
Hosted by
Tim Callan
Chief Compliance Officer
Jason Soroko
Fellow
Original broadcast date
August 26, 2026
X9 is a consortium certificate for interbanking applications. There is a common misunderstanding that X9 certificates are a public-trust surrogate for mTLS using WebPKI certificates. We clarify why this is not the case.