Web App Key Extraction
Web key extraction involves uncovering sensitive secrets—like API tokens, JWTs, or private keys—exposed in client-side code or web storage. Since web apps are delivered as open-source JS and HTML, attackers can easily inspect them for hardcoded secrets. If found, these secrets can grant unauthorized access to APIs, databases, or user accounts.
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Why Are Keys at Risk in Web Apps?
Modern web apps are often fast-moving projects, but sometimes API keys or credentials are accidentally left exposed in JavaScript code or browser local storage. Attackers can use browser dev tools or automated scanners to extract these secrets. The result can be data theft, service abuse, or account compromise.
Preventing Key Extraction in Web Apps
Store sensitive keys on the server side and never expose them to the browser or client. Use environment variables, token-based authentication, and safeguard communication with HTTPS. Regularly audit source code for exposed secrets to catch mistakes before they’re exploited.