>These days it pays to be defensive, and to know how you're connecting. If it's been a few years since you set it up, it might be worth revisiting in case you can use improved technologies. Or to check you're not still using technology that's been cracked, such as PPTP VPN.

Well I'm not opening my box to visitors, it's the clients who do, and I can't even count the various protocols I've seen used. Most of the time it's hard to remember which VM has what installed, as sometimes some of VPN clients don't like each other and installing any of them on the home box is a bad idea, as they usually cut off all other connections, so I'd be blinded while connected.