Pob255
Actually there is a legal reason for it, morally it might well be questionable but legally I seem to remember that if someone accesses your wireless to commit an illegal you can be held jointly accountable.
Same applies to if you use the internet at work to do something illegal, your work place will share a joint legal responsibility. ….
Oh, it's far less clear than that. In relation to the work stuff, yeah, the case may well be made, certainly in some types of civil matters, that the company is liable. Examples would be defamation. But significant in that would be company policies on employee use of the internet, and what steps they'd take, to prevent such abuses, such as staff training and, in some cases, monitoring (though that latter opens up another whole can of legal worms for the employer).
But, MonkeyL raises a good point, that being the intent required for offences that aren't strict liability offences. And it also raises issues like the “common carrier” defence, referred to in the EU E-Commerce directive as the “mere conduit” situation.
Having said that, anyone operating an open and unsecured WiFi connection, unless they deliberately and explicitly intend to do so, perhaps for social purposes, is either ignorant of the implications for their own security of doing so, or is a muppet if they know of those implications and still don't secure it.
And, of course, that's far from uncommon. Several years ago, I scared the poop out of a friend with an unsecured wifi router by showing him some printed information he was shocked I could see. Needless to say, his router was secured about 2 minutes later, which was the point of the exercise. He got the message, loud and clear, especially when I offered to lock him out of his own router from my laptop, and from outside his home, and asked how how he'd explain it to the authorities if someone sat down the road in their car downloading child porn via his net connection. And how long he might sit under arrest in a police cell on child porn charges before he convinced them he knew nothing about it. ;)
And what that investigation, and what the arrest much less any charges that might result might do to his career as a computer security manager. :rolleyes:
And no, I'm not kidding about that last bit, on his occupation.