That kind of coverage also makes hotspots more attractive to hackers than ever before. You should be more cautious in hotspots than you are at home.
An “Evil Twin” may be lurking
One of the more sophisticated Wi-Fi hotspot dangers is known as the "evil twin." An evil twin is a wireless hotspot set up by a hacker to lure people from a nearby, legitimate hotspot. When you log in at a Starbucks, for example, you might end up on an evil twin set up by the innocent-looking person working on a laptop at the next table.
The most harmful evil twins try to remain invisible and allow you to do business as usual. But in the background, they record everything you do and type while you're unknowingly connected. Do a little online shopping and you could end up giving away your credit card information.