Zscaler (ZS) Stock Analysis & Winston Score

Zscaler is a cybersecurity company that protects businesses from online threats by acting like a security checkpoint in the cloud. Instead of using traditional hardware firewalls, companies connect their employees and systems through Zscaler's cloud platform, which checks all internet traffic for dangers. Its main customers are large enterprises and government agencies that need to keep their data and networks safe. Zscaler makes money by charging businesses a recurring subscription fee to use its cloud security services. It operates globally, with strong adoption in North America, Europe, and Asia-Pacific, and generates over $2 billion in annual revenue. Its competitive advantage comes from its large cloud network, which processes billions of transactions daily and gets smarter as more customers use it — a classic network effect. The key growth driver is the ongoing shift away from old-style network security toward cloud-based "zero trust" security models, though Zscaler faces growing competition from larger tech companies like Microsoft and Palo Alto Networks.