The US Cybersecurity and Infrastructure Security Agency (CISA) has urged organizations to address security risks related to unencrypted cookies used in F5 BIG-IP Local Traffic Manager (LTM) systems. According to the agency, cyber threat actors are exploiting these unencrypted persistent cookies to access and map non-internet-facing devices on networks. F5 BIG-IP is a widely used suite of hardware and software solutions designed to manage and secure network traffic. A malicious cyber actor could leverage the information gathered from unencrypted persistence cookies to infer or identify additional network resources and potentially exploit vulnerabilities found in other devices present on the network.