Don’t let your holiday end in wireless disaster With four long weekends before the end of the year, travel plans are on the horizon for many of us. As much as sunscreen and shampoo are travel necessities, so are laptops, netbooks and smartphones. And to get online, people are increasingly taking advantage of wireless-fidelity (Wi-Fi) networks. Wi-Fi networks are available in airports, hotels and even in the air. While offering convenience and flexibility, Wi-Fi networks are unfortunately also easy entry points for hackers looking to steal your money, account