We propose a novel approach of the security issue to survivability. The main objectives are to detect the attacks in real time, to characterize the attacks, and to survive in face of the attacks. To counteract the attacks' attempts, we perform the software rejuvenation methods (SWRMS) such as killing the intruders' processes in their tracks, halting abuse before it happens, shutting down unauthorized connection, and responding and restarting in real time. These slogans will really frustrate and deter the attacks, as the attackers can't make their progress. This is a way of survivability to maximize the deterrence against the attacks in the target environment. We address a framework to model and analyze the critical intrusion tolerance problems ahead of intrusion detection and we present a set of innovative models to solve the security aging problems.