This is beginning to grow annoying, because only a few people are listening.

I'd rather block NetBios at the perimeter than try and make sure every one of my hundreds of users has it switched off, besides I like NetBios.
This isn't about a hundred users, it's about a single home system. Please read the origonal post.

Try running Nmap on yourself.
Been there, done that, port 135 - 139 still disabled after shutting down NetBIOS.

I cannot tell you how many times someone has used a friends computer.. Next thing you know there is a trojan on the computer that opened a port letting the whole world connect. Something as simple as having Zone Alarm installed would at least pop up a notifcation
This is a singular system, and the only person that uses it is me. Thus I really don't have this problem of friends disturbint my computer.

You can see attempts to hack your computer, and where they come from.
That's great, now what? Report all 500 attacks a day to an ISP? No, you would simply do whatevery one else does with a home, single users, firewall logs. Look at them. And it would end there

Even if it's not related directly to you, wouldn't it make sense to have that extra protection in case someone else moof's it?
Not at all. I researched ISP's before I chose one, and comcast (as you can see), is the one I chosen to be the most open. Comcast does not disable any ports for any reason, and I know this after many calls with their support team while preparing wargames with friends of mine. I also know port 135 exists regardless of comcast because I secure other comcast users (friends) machines who have it running from start, but ends after disabling NetBIOS. This means that the entire security of my system is up to me, my knowledge, and my configurations.


Once again... everyone, we come back to the first step. If you feel a firewall is something I need, then by all means assist MsMitten in the Proof-of-concept attack. You want to make your point? Crash my box, crack it, hack it. If you can't, then my point is made. If you can, then I learn something new. Have fun!