Airport security has been designed (in theory) to detect threats to air travel before a malicious person or item makes it to the plane. Much of cybersecurity works the same way.
As anyone who’s ever been frisked by a TSA agent because of their shampoo bottle can say, the system can be frustrating and surreal. For security luminary Bruce Schneier, TSA checkpoints were the classic example of “security theater” when he coined the term. Such “impenetrable” perimeters are a classic tool for defenders throughout human history. But when it comes to airports, many argue that we over-rely on these checkpoints to prevent the next 9-11. Despite these protective gateways, dangerous people and items pass through uncontested every day.
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