Kaustubh Vajarkar

Cybersecurity Solutions Engineer

I am a Cisco Cybersecurity Solutions Engineer with specialization in Firewalls, SASE, ZTNA, MFA. I have 10 years of cybersecurity experience with my start being in Cisco TAC supporting Firewall Threat Defense. In my free time I occasionally draw, paint, read and watch movies with my family.

Articles

Steve Vida

Kaustubh Vajarkar

Black Hat USA 2026: Safeguarding DNS with Secure Access

Cisco is the Security Cloud Provider for the Black Hat conferences, over a decade providing DNS Security. Learn about protecting DNS with Secure Access.

September 7, 2026 • 4 min read

security