ON A recent evening, your correspondent was sitting in bed in the spare room of a friend's house in south London. The owners of the house were asleep in their own beds—and in their slumbering heads held the password to the building's Wi-Fi router.
Schumpeter | Wi-Fi offloading
f93gHPaz!w120K;6afyHB. Got it?
How to access your friends' Wi-Fi networks
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