Xiao Liu Lab

Dec 30, 2025 · Information Security

Why Our New SSL Certificate Caused Handshake Errors and How We Fixed It

After updating a core API's SSL certificate, a partner reported repeated SSLHandshakeException errors, mistakenly labeling the cert as a development version; thorough verification revealed the issue stemmed from an outdated Java trust store lacking the new Sectigo root, leading to a set of concrete remediation steps and best‑practice lessons.