Browser Extension Security Assessment: When Extensions Become Attack Vectors — 中国企业指南

Browser extensions operate with significant privileges — accessing page content, cookies, browsing history, and network requests. For enterprise-deployed extensions, security assessment covers: permission scope (does the extension request minimum necessary permissions?), data collection practices (what user data does the extension capture?), communication security (how does the extension communicate with backend servers?), update mechanism security, and content script injection risks. Compromised or malicious extensions have been responsible for significant enterprise data breaches.