Caching, while essential for optimizing performance, introduces several significant security concerns that must be carefully managed. A primary risk involves sensitive data exposure if confidential information, such as user credentials or private user data, is improperly stored in the cache and subsequently accessed by unauthorized entities. This can lead to information leakage where data belonging to one user is inadvertently served to another due to incorrect cache keying or insufficient invalidation policies. Furthermore, cache poisoning attacks are a serious threat, enabling attackers to inject malicious content into a shared cache, which is then served to legitimate users, potentially facilitating cross-site scripting or defacement. Another vulnerability arises from potential Denial of Service (DoS) scenarios, where malicious actors might exploit cache mechanisms to bypass the cache or force excessive backend requests, overloading the origin server. Finally, improper cache management can result in the retention and serving of stale or revoked data, which can have security implications if, for instance, outdated authorization states or critical security policies are inadvertently maintained. More details: https://images.google.co.ug/url?q=https://epi-us.com