The Zero Trust Security Model is a cybersecurity approach that assumes no implicit trust for any user, device, or system, regardless of whether they are inside or outside the network perimeter. Every access request is treated as potentially hostile and must be authenticated, authorized, and continuously validated before granting access to resources. This model employs stringent identity verification, micro-segmentation, least privilege access, and continuous monitoring to ensure robust security. By eliminating the assumption of trust, the Zero Trust Security Model aims to minimize the risk of data breaches and unauthorized access, thereby enhancing the overall security posture of an organization.