<ul data-eligibleForWebStory="true">HTTP headers play a crucial role in web security by controlling access and cache settings.Developers often overlook HTTP headers, leaving vulnerabilities that hackers can exploit.This article delves into how hackers use HTTP headers to steal data with real examples.It also highlights the importance of configuring the 5 most critical security headers.Misconfigurations in Fortune 500 companies are discussed, revealing potential security risks.A comprehensive checklist is provided to strengthen website security.HTTP headers govern communication between browsers and servers during HTTP requests and responses.