Cloud computing has significantly reshaped business operations by providing scalable and flexible IT infrastructure. It allows organizations to rent computing resources on-demand, which reduces the need for physical servers and lowers capital expenses. Additionally, cloud services enhance collaboration and accessibility, enabling remote work and real-time teamwork.

The key service models in cloud computing include Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS). IaaS provides virtualized computing resources over the internet, allowing businesses to scale their IT infrastructure easily. PaaS offers a platform for developers to build and manage applications without dealing with the underlying infrastructure. SaaS delivers software applications over the internet, enabling users to access them from anywhere.

SASE is an architectural framework that integrates security and networking solutions to provide secure access to cloud applications for remote users. It emerged in response to the need for robust security measures as more users operate outside traditional network perimeters. By combining security policies with networking capabilities, SASE helps organizations maintain security while adapting to the evolving landscape of cloud computing and remote work.