Palo Alto Networks is a global cybersecurity leader, founded in 2005 by Nir Zuk (former Check Point and NetScreen architect) in Santa Clara, California. Inventor and market leader of next-generation firewalls (NGFW). IPO on NYSE in 2012 (PANW), $100B+ market cap. Products include NGFW, Prisma Access (SASE), Prisma Cloud, Cortex XDR/XSIAM, WildFire advanced threat protection, and Unit 42 threat intelligence.