SquareX

SquareX develops a Browser Detection and Response (BDR) solution designed to protect enterprises from client-side, browser-native cyber threats. The platform integrates with existing browsers such as Chrome, Edge, Firefox, and Safari, rather than requiring organizations to adopt a separate enterprise browser. The product focuses on detecting, mitigating, and threat-hunting attacks that occur within the browser, including malicious browser extensions, spearphishing attacks, browser-native ransomware, identity-based attacks in the browser, and data loss or leakage related to generative AI tool usage. SquareX targets enterprise IT and security teams looking to address security gaps that legacy endpoint and network tools may not cover, aiming to provide visibility and control over browser activity without disrupting user workflows or productivity. The company was founded by Vivek Ramachandran, who previously founded Pentester Academy, a cybersecurity training company acquired in 2021. SquareX's team includes members with backgrounds in offensive security research, having presented at conferences such as DEF CON and Black Hat. The company has backing from investors including Susquehanna Growth Equity (Syn Ventures reference) and Peak XV Partners, and counts CyberArk and Okta among its technology partners.