All Countermeasures Have Some Value, But No Countermeasure Is Perfect

Abstract

Neither attackers nor defenders can afford to rest: In the long run, they are forever spurring one another on. Attackers develop new ways to defeat countermeasures, which in turn leads defenders to develop better countermeasures, which in turn leads attackers to develop still better attacks, and so forth. While this results in a kind of progress, different defenses, at the right moment and in the right mix, can be extremely effective. Even things as simple as running away, or having a plan in the event of attack, have their place in a defender’s arsenal.