Dive deep into XML External Entity (XXE) injection protection techniques for TypeScript applications through hands-on implementations. Learn to prevent file disclosure, entity expansion attacks, and unsafe XML parsing that compromise application security. Explore input validation strategies, secure parser configurations, entity processing controls, and best practices for safe XML handling in Node.js environments. Develop skills to create resilient web applications that properly validate, sanitize, and process XML data while blocking XXE vulnerabilities in TypeScript.