Detailed text transcripts for TV channel - KGO - 20140729:08:45:00
>> currently we have 260 networks. we have traveled, what, about one yard? >> reporter: we are cruising the streets of new york, scanning for wi-fi hot spots. >> there's somebody's mobile wireless network. >> reporter: many wireless connections are unprotected. >> i can see the photos they're sharing -- 4 many people are hacked accessing free wifi. when we talk about a coffee shop or computer store that offers free wi-fi, hotel even, is it safe to go on there? >> it is very easy for an intruder to see pretty much everything you are doing. >> reporter: if you are banking online, paying bills, a...