http://bugs.winehq.org/show_bug.cgi?id=11953
--- Comment #10 from Eric Appleman erappleman@gmail.com 2008-03-10 11:15:53 --- I've been using this program on pretty much a daily basis for over 3 years and I will vouch for its security.
Share will not send or receive any data unless you provide nodes.
At any rate, wouldn't your fears be alleviated if you ran a virtual livecd Ubuntu session?
But honestly, it's your choice, and I don't who else to turn to for help. Feel free to drop names and e-mail addresses. Just don't leave me in the dark.
Thanks.