The FBI issued an alert this week warning that wireless Internet networks, often called Wi-Fi hotspots, are more vulnerable to hackers than most users probably realize. In South Florida, Wi-Fi hotspots are at airports, fast food restaurants, bookstores, coffee shops, sports bars, school campuses, malls, supermarkets -- just about everywhere. Several cities and neighborhoods in the region plan to eventually install networks for residents, too. How secure do you think is your local hotspot? Do you trust it to do your finances or other personal tasks via a coffee shop Wi-Fi access point?

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