Its like your router will some how block and jam data directed
to Azureus. Buy port forward, you just make sure the router is out
of the way and allows a direct transfer of data from the
source.
Only trojan horses from the torrent server itself might break into
your computer at the faster rate. Meaning even without a direct
route from the router, spyware can too enter. Port forward just
make it faster for them.
Worry not. According to 'professional' views online, its likely
that theres spyware going around in all torrents networks, no
matter what client you use. Also, its said that Azureus is the most
vulnerable to trojans.
However, I have been using Azureus for years and nth happened. My
friends whos with Bitcomet, Bittorrent, BitLord, ABC, Bittornado,
uTorrent also tell me that none of them experience virus or spyware
when using.