retired jerry wrote:Can they get into my bank and transfer all my funds to themselves with no recourse for me to get it back?
Not likely unless they can slip a keylogger onto your system without antivirus going off. Sniffing packet data of SSL transmissions would probably be pretty fruitless.
Koda wrote:so I gather its my local drive and operating system that's at risk.... is this possible without sudo privileges? all my home machines are Linux.
Well, you're probably okay =D. If that's not a barrier to them then you probably couldn't do much anyway. Though I say that from only-limited Linux experience. --edit--- As long as you're banking/emailing/shopping over http
s connections, then yes it's just your OS and physical data that's at risk, not the network packets.
--
If you have good antivirus, running a pretty secure OS (ie: not Windows XP with no passwords, etc) and transmitting data over SSL (https) then you're -probably- okay. That's my assumption though, I could probably ask a couple of my friends and be proved wrong. It's still worth it to upgrade to WPA/WPA2 just to minimize that risk. If you make it too easy for them then you invite the trouble really. If you have the same higher security that most other WiFi connections have, then it's really highly unlikely that you would ever have any issue.
Not to mention, it's just better to keep other people off your WiFi so they don't hog your bandwidth! Especially if you have Comcast and are into HD streaming on Netflix and a big gamer, you can't spare much of that 250gb/month cap for strangers.