natural treatment for congestive heart failure
If you are using WiFi (802.11a,b.g) public hotspots then you are sending and receiving all of your traffic in “the clear”. It is penetrating walls, it is zooming across the street, and it is all readable plain text. Many hotels have sniffable wired networks. Go to a conference with your competitors and from the comfort of your hotel room you might be exchanging more than greetings. If your data is in the clear on a sniffable network everything you do is available for public perusal.