New York City's public Wi-Fi project is the latest in a long trend of companies offering free services. The services come at a cost, however. This WiFi can contain hackers just a few feet away chipping on your data and finding out about your bank accounts.
When people talk about hacking and social networks, they're not referring to the common definition of hacking, which is using malicious code or backdoors in computer networks to damage systems or steal proprietary information. Hacking into social networks requires very little technical skill.