[dpcan]

This worries me at home.

Say I have a party and the neighbor comes over. A few seconds on my unattended computer and they can use my Internet.

[chias]

If you have a malicious person in your home with physical access to your unlocked machine, your wifi password is the least of your worries.

[column]

Now that you stated the cliché about physical access blabla, could we please consider his point as a valid concern?

[beagle3]

They could run a rootkit/keylogger/download contraband to your computer in the same time. A lot more to worry about than just learning your wifi password.

[thaumasiotes]

Where exactly do you think the insecurity is coming from here? Your guests could do anything at all with a few seconds on your computer. Learning the network password is the least of your worries.

[keithpeter]

On my domestic adsl modem/router I use MAC address filtering as well as wpa2. That might slow them down a little tiny bit.

I imagine at the end of the day, you need to change your wifi password now and again (mind you I've left mine the same for a year or 18 months).

[edwhitesell]

Most new routers have the WPS button anyway. Then it's mostly automatic.