Lackern Xu is a cybersecurity professional specializing in Public Key Infrastructure (PKI), cryptography, and certificate lifecycle management. As a Solutions Engineer at DigiCert, he works with organizations to design and implement scalable, secure digital trust solutions.

Across the APAC region, Lackern has supported enterprises in strengthening their security posture, streamlining certificate management, and preparing for emerging challenges such as post-quantum cryptography. With a background spanning solutions engineering, professional services, and software development, he brings a practical, hands-on perspective to securing complex IT environments.