e.g if someone used your wireless nouns to access the internet
Answers:
Depends how your router is set up. If it is an access point, it's unlikely. But near are ways of getting access to your files using trojans and spyware. Make sure you hold a apt firewall.
It depends, if they are in the vicinty of your wireless nouns and you enjoy no password, later they could combine your grating.
Depending on how your computer is setup, they could see your files if they are shared and available.
It is especially simple to password proect and yuo should do it fast.
YES ,YES and YES.
The reality that they hold access to your wireless nouns give them an stretch out door and more so if your wireless nouns have no protection.
YUP YUP!
yes enormously much so
yes yes and yes... to well in our day
YES indeedy.