Aggressive surveillance and espionage has long been a fact of life for government agents traveling to hostile nations but, increasingly, economic espionage is waged against visitors who neither have the expectation that they're a target nor the resources to adequately defend themselves from plausible threats. This talk will present tools, techniques, and procedures which will allow non-nation-state international travelers to defend themselves from government, criminal, and commercial monitoring, with a bias toward free and open-source options readily adopted by potential targets.