In this video, I’m starting from the basics—what is cloud computing, what is Azure, and why we actually need a firewall like Palo Alto in cloud. The biggest thing I want you to understand is: cloud is nothing but a data center. Earlier, companies used to build their own data center inside the office with servers, switches, routers, and firewalls. In cloud, somebody else builds and maintains that infra, and we simply rent what we need—scale up when we want more servers, and stop paying when the use-case is finished. Then I explain why cloud is needed with a simple example: if I’m running an e-commerce website and I’m expecting 2x or 3x traffic during a sale, in cloud I can rent extra servers immediately for that period. In an on-prem data center, I must buy servers, configure them, maintain power/temperature, and then figure out what to do with them later. Finally, I connect this to security: cloud providers will not reveal their internal connectivity or traffic movement, but as customers we still build networks, subnets, and host VMs and applications—so we must control who can access what. That’s exactly why we deploy Palo Alto (or FortiGate/Check Point/etc.) in Azure to protect the infra with proper policies and traffic control.