In a bit of good news for students and faculty traveling home for the holidays, Google on Nov. 10 said it will subsidize free wireless network access in 47 airports from now until January 15, CNET reports — and indefinitely in the airports of Burbank, Calif., and Seattle. The promotion, in cooperation with Boingo Wireless, Advanced Wireless Group, and Airport Marketing Income, is the latest effort to use free Wi-Fi to boost a corporate brand. Among the larger participating airports are those in Houston, Boston, Miami, Las Vegas, Nashville, San Diego, Baltimore, and St. Louis; a full list of the airports is available at Google’s free holiday Wi-Fi site. But there are downsides to the offer, too. Public, anonymous places such as airports are great spots for hackers to launch main-in-the-middle attacks by offering "Free Wi-Fi," so users should exercise caution when logging on to these networks…

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