...we were forced to conclude that guests' data transmissions are often at risk when they use a hotel's network..
Read the full article here.
The findings reveal "that hotels in the U.S. are generally ill-prepared to protect their guests from the security problems inherent in Ethernet. We were forced to conclude further that most hotels have installed an amenity that they may not be managing properly,"
The survey only covers hotels in the US, but I'd imagine that there's a similar picture elsewhere too.