You have heard the loudly voiced fears: Signing onto open, unmanaged, public Wi-Fi networks is about as smart, and safe, as unprotected public sex with strangers. Except, just maybe, it's simply not true. All the threats are reasonably accurately portrayed, wrote Robert McGarvey. "But you know what is missing? Quantification of how often users on public WiFi networks are compromised and what costs or damages ensued."