1. A method for identifying and mitigating security threats caused by telecommunications management messages, the method comprising: (a) receiving telecommunications signaling messages from an external source; (b) from the telecommunications signaling messages, screening telecommunications management messages affecting the status of the same managed resource; (c) applying a time-based security policy to the management messages affecting the status of the same managed resource; (d) determining whether the, time-based security policy is violated; and (e) in response to determining that the time-based security policy is violated, performing a mitigating action to protect the resource.