A system including a network interface and a processing circuit is provided. The processing circuit includes one or more processors coupled to non-transitory memory. The processing circuit is structured to receive a request for a multiple custody linkage between user devices. The multiple custody linkage includes a digital connection between the user devices that allows shared access to a resource. The resource includes at least one of a physical object or information. The processing circuit is further structured to perform a validation process based on information in the request for the multiple custody linkage to determine if a violation of a security protocol exists. The security protocol is associated with security of the resource. The processing circuit is further structured to, in response to determining no violation of the security protocol exists, activate the multiple custody linkage between the user devices to allow the shared access to the resource.