This does not surprise me at all. I have been talking about this for years. Sometimes "looking around" on a hotel network is like a who-is-who of consulting companies. Some of them happily naming their laptops with a name that includes the firm's name. Worse is that most laptops are configured to trust (at least to a certain degree) the local network, meaning in the worst case every machine on a hotel network can access another machine's services . To add to this scenario make it wireless...
Cornell did their own study which shows that most U.S hotels are vulnerable to malicious attacks and are "ill prepared" to protect their guests from Internet security problems.
Read the full article: http://www.hotelschool.cornell.edu/research/chr/pubs/reports/abstract-14928.html
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