Espionage is often portrayed in movies as a world of flawless gadgets, perfect disguises, and unerring intuition. In reality, intelligence work is fraught with human error, bureaucratic blunders, technological failures, and sheer bad luck. History is littered with spies who were caught not because their cover was blown by a master detective, but because they forgot to change their socks, sent a message at the wrong time, or trusted the wrong person. Here is a list of common spy mistakes and real-life examples where these errors led to catastrophic failures. 1. Operational Security (OPSEC) Failures The most common mistake is failing to maintain basic operational security. Spies often become complacent, treating their dangerous profession like a routine job. · The Mistake: Using unsecured communication channels, predictable routines, or failing to "burn" (destroy) incriminating documents. · Real-Life...