As Zscaler Doubles Down on AI Security, ZS Stock Still Needs More to Justify Its Steep Valuation

Zscaler (ZS) is making another push into AI security, and investors are paying attention. The company said it plans to acquire Symmetry Systems, a data security startup that helps map how identities, apps, and data connect across an enterprise. That matters because AI is creating a new security problem. Companies do not just need to protect people and devices anymore — they also need to watch how AI agents move through data.

That is part of why cloud security stocks have stayed active this year. Investors still like the long-term story, but they are also demanding proof that these companies can turn AI buzz into real sales. Zscaler fits right into that debate. It is growing well, it is spending to widen the platform, and it wants to be seen as the security layer for the AI age.