Description: File sharing security refers to the measures implemented to protect the integrity, confidentiality, and availability of files during their transfer across networks. In an increasingly digitalized environment, where collaboration and information exchange are essential, ensuring that shared files are not intercepted, altered, or accessed by unauthorized individuals has become crucial. File sharing security encompasses various techniques and technologies, including encryption, user authentication, and role-based access policies. In the context of Zero Trust architecture, continuous verification of every access to files is emphasized, regardless of the user’s location. Furthermore, security in 5G networks introduces new challenges and opportunities due to its high speed and connectivity capacity. Implementing these measures not only protects sensitive information but also helps organizations comply with privacy and data security regulations, such as GDPR. In summary, file sharing security is an essential component of modern IT infrastructure, aimed at mitigating risks and ensuring that critical information remains protected during transit.