Checked my notifications and saw something odd. Somehow another nation managed to buy 400 food from me, despite the fact I never created an offer. At 11:23pm 1/25/2016,
Doyle of United union of fitzroy accepted your trade offer. You received $404,400.00 and in exchange Doyle received 400 food.
My trade history shows this offer was created at 11:23pm as well. I did not remember creating this offer, since I usually buy food rather than sell it. Checked my browser history. Wasn't even on PnW at 11:23pm sever time. I suspected hacking at first, but this rate is almost 10X the normal price for food, which seems like a silly use of an exploit. I have never engaged in price-gouging/sleeper trades, so it's not a random offer I created months ago and forgot about.
Mysterious buyer nation: https://politicsandwar.com/nation/id=23867
My nation: https://politicsandwar.com/nation/id=10847
Trade history: http://imgur.com/q7A87YZ
Not a big deal (I obviously came out ahead in this deal) but I want to make sure others aren't having similar problems.