Guerilla Wi-Fi

You may not have heard of guerilla wi-fi but THIS is brilliant.

Genius idea that's spot on for the brand.
I don't agree that "People use their laptops everywhere" is their insight.
It works so well because:

1. When you're in a cafe, finding a wireless network that someone has forgotten to put a password on is one of life's small victories, a bit like finding a tenner in the pocket of an old pair of jeans.
2. People become even more nosey if what they find adds an element of danger and a sense of "I really shouldn't be looking at this but..."

The car rental company SIXT used a similar idea for THIS campaign.

Via Adverblog.