Black and white photo of Dave Lewis against a brick wall.

Dave Lewis

Global Advisory CISO, Cisco Security

Dave Lewis is a Global Advisory CISO at Cisco Security. He has 25 years of experience in IT security operations and management including a decade dealing with critical infrastructure security. He is the founder of the security site Liquidmatrix Security Digest and co-host of the Liquidmatrix podcast.


Keep up with the latest cybersecurity threats, newly discovered vulnerabilities, data breach information, and emerging trends. Delivered daily or weekly right to your email inbox.