Do you ever wonder if someone has tapped into your WiFi network? Take a look at J.D. Biersdorfer’s Tech Tip post in The New York Times entitled I Spy on My Own WiFi for a list of ways to check it out.
For years, many websites tried to block spammers and bots by making Web users read a distorted series of characters and asking them to type back what they saw, as a way to verify it was a human entering the site...