Free WiFi. Better yet: no annoying password to type in.
All true.
But ... everything you type, or see on your screen is sent in the clear, & visible to anyone with a little knowledge ...
http://www.theregister.co.uk/2014/10/29/naked_and_afraid_thats_how_telstras_wifi_security_makes_you_feel// sit down open up the laptop join advertised SSID go online free WiFi makes working cafe breeze transformed Sydney’s libraries most sought-after spots in town encourage tourists business residents spend more time money everything they send receive over their connection read by anyone else free network understand the risk Wireshark root access free WiFi network never has a password easy to log on in read the network traffic transmitted in the clear every packet of data Telstra public WiFi hotspots free trial period public WiFi hotspots open warnings login screen perform sensitive tasks connected smart phone smartphones weather forecast emails downloading podcast proactive script kiddie Wireshark root need secure connections public security paranoid risks WPA2 authentication access public WiFi network unsecured WiFi network consider safety of their users open networks unacceptable unnecessary risk risky environment SSID corporate secrets tablets or laptops surfing the Web secure website Google Facebook Twitter HTTPS encryp traffic between web browser server snoop metadata sites visited content of that traffic websites secure HTTPS authentication encryption authenticated and secured HTTPS website Internet known threats The Reg naughty list HTTP devs developers developer develop alerted /