Nokia says Warchalking is theft.
So if I draw a symbol on the pavement, in chalk, I'm stealing ?
Maybe you should secure your networks you morons. It's really simple. Instead you show a complete lack of knowledge and understanding. If I walked outside my building and saw one of these marks, I'd be at the throats of my networking department straight away. So, in that way, warchalking has done me a service.