Yep, can recall being warned about the ability of snooping several years ago with P2P. This is the 1st hard evidence I've seen. Apparently all these 'Firewalls' including ZoneAlarm cannot help since you apparently authorize access.
The best things in life are free, or so it is said. But when it comes to
P2P file sharing, what was once thought to have been free may have come
with a price.
See What You Share On P2P is a site devoted to showcasing all sorts of
files that were 'found' on P2P networks. Most files featured are fairly
embarrassing, and were obviously not meant to be shared. Be it a bank
statement, a letter of apology to a loved one, or a $280,000 promissory
note, these files make great reading for the nosey, while providing a cold
reminder of the risks involved in some P2P networks.