Digital signage is an effective tool for engaging customers, patients, and students, but it can pose significant security risks if not properly protected. These systems can be vulnerable to unauthorized access, content takeovers, and network intrusions if left unprotected, as they often suffer from outdated software, poor authentication, and unsecured networks. To mitigate these risks, businesses should adopt a robust mobile device management (MDM) platform for automated updates, network segmentation, and real-time threat monitoring, paired with a secure content management system (CMS) that enforces access control. Physical security measures, regular updates, and strong authentication practices are essential to safeguarding digital signage networks. Companies like Esper and Fugo offer solutions to enhance security and reliability, ensuring that digital signage remains operational and free from unauthorized interference, ultimately protecting revenue and brand reputation.