Zscaler Purchases SquareX to Secure Browsers Without Agents

CEO Jay Chaudhry: SquareX Deal Targets Unmanaged Devices and Third-Party Access Michael Novinson (MichaelNovinson) • February 6, 2026

Zscaler acquired a browser security startup led by the former CEO of Pentester Academy to give organizations device posture checks and data loss prevention redaction.

The San Jose, California-based cloud security titan said its buy of Silicon Valley-based SquareX gives customers stronger browser-based security capabilities without the operational burden of installing agents or deploying full standalone enterprise browsers, said CEO Jay Chaudhry. SquareX allows security policies and enforcement to remain centralized in the cloud rather than distributed across endpoints.

"Customers started telling us, 'Give me a couple of features like posture check using a standard browser, then life will be wonderful,'" Chaudhry told Information Security Media Group. "And we found SquareX, which had done exactly that. Essentially, they've built hyper objects for browsers ...