So our cable company accidentally moved our service to our new apartment a week before we scheduled it. Great. However, tech support can't help we have to talk to billingbut they won't be back until Tuesday. Great. So we've been mooching off a neighbor nice enough to leave his wifi open. Thanks anonymous neighbor. (Side note, his computer looks invisible to me. Once we were house sitting and an open wifi network has a man sharing his entire computer, including documents for taxes, all his banking, info logins, etc. Luckily the people whose house we were in knew him so we found his house and let him know he needed to seriously make some security changes (and change passwords!)). And it got me to thinking. When we move, I wouldn't mind leaving my network open for others to use. We have the following: Time Capsule (last edition), original express w/ printer & speakers and two macs: uMB and G5 Mac. Are there any settings I can do on our computers to ensure a moderate degree of safety while leaving our wifi open?