Get to know # Alistair Redfern Ali Redfern has worked in the tech industry for over 25 years, at organisations such as Hewlett Packard, Microsoft, Zoom and now at Palo Alto Networks, where he is Head of Defence and National Security, and proud to be part of an organisation that is protecting our digital way of life across critical national infrastructure, defence and national security. 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Feb 03, 2026 By [Alistair Redfern](https://www.paloaltonetworks.com/blog/author/ali-redfern/?ts=markdown "Posts by Alistair Redfern") *** ** * ** *** *** ** * ** *** Blogs by Alistair Redfern Sort By: Popular Popular Recent *** ** * ** *** ## Sorry, no results were found. {#footer} {#footer} ## Products and Services * [AI-Powered Network Security Platform](https://www.paloaltonetworks.com/network-security?ts=markdown) * [Secure AI by Design](https://www.paloaltonetworks.com/precision-ai-security/secure-ai-by-design?ts=markdown) * [Prisma AIRS](https://www.paloaltonetworks.com/prisma/prisma-ai-runtime-security?ts=markdown) * [AI Access Security](https://www.paloaltonetworks.com/sase/ai-access-security?ts=markdown) * [Cloud Delivered Security Services](https://www.paloaltonetworks.com/network-security/security-subscriptions?ts=markdown) * [Advanced Threat Prevention](https://www.paloaltonetworks.com/network-security/advanced-threat-prevention?ts=markdown) * [Advanced URL 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