Please post the TX that seem to have resulted from a hack. How long from the TX to your discovering? Is your computer acting strangely in any other way, have you run a virus scan, etc? Did you have a firewall up?
As much detail as you can give will help us figure out if there is anything actually wrong or if you just got unlucky. Did you tell ANYONE that you had PTS on your computer?
My ubuntu is running iptables, firewall is on. Computer is not behaving strangely in any other way, id imagine they would have hacked my 8+ btc otherwise. However, when I ran my virtualbox windows xp there was no firewall in there. I figured (probably erroneously that since ubuntu was firewalled and virtualbox was inside ubuntu, there was no need). Its quite confusing as i am not sure whether it got hacked because i ran it in virtualbox, or because i ran it on ubuntu using wine. Who knows, either way. Pretty impressive by whoever did it so quickly.
The only weird thing I noticed was that my coins were not sending when i was running it on virtualbox; as I reported on my other post where you were helping me. It would just get stuck at 0 confirmations. I only managed to send my coins once i ran it on ubuntu. Also, as soon as i sent my coins then, it was like the hacker woke up and realised im emptying my wallet and emptied it himself instead.
I really think my wallet was compromised way earlier, hence why i could not send transactions perhaps? Maybe they were waiting for me to deposit more pts before they did it.
So all in all, it looks like it was because i ran it on XP inside virtualbox with no firewall. Anyway, this post is not to complain but rather to tell everyone else to take an extra step to protect their PTS.