SquareX provides a Browser Detection and Response (BDR) solution designed to protect enterprises from browser-based threats. The platform focuses on securing the browser environment where most employee work activity and cyberattacks occur. The solution addresses threats including malicious browser extensions, advanced spearphishing attacks, browser-native ransomware, identity attacks, generative AI data loss and leakage, and other client-side web attacks. The BDR platform integrates with major browsers including Chrome, Edge, Firefox, and Safari, allowing organizations to maintain their existing browser infrastructure while adding security capabilities. The solution provides detection, mitigation, and threat-hunting capabilities for client-side attacks targeting enterprise users through their browsers. SquareX's approach combines visibility and control over browser-based threats with the goal of maintaining user productivity and experience. The platform offers granular control and actionable insights into attacks targeting employees online while operating within the browser environment where users conduct their daily work activities. The company was founded by Vivek Ramachandran, a cybersecurity expert with over 20 years of experience in offensive security and threat analysis. The team includes professionals with backgrounds in security research, having discovered and disclosed multiple zero-day vulnerabilities and presented at conferences such as DEFCON, Black Hat, and RSA. SquareX is backed by investors including Sequoia Capital (Peak XV) and SYN Ventures.