Guild Wars 2

Basically I lost almost all my silver somehow. I’d like to know is this my own fault or is this somekind of a bug or hacker? Yesterday I was on my thief and I had closer to 90 silver. I’ve been doing zones and dailies and got some money from selling stuff via Trading post.
I haven’t bought anything from Black lion for long time and I’ve used teleports quite rarely. Teleports ,on the zone where I currently am, cost me about 16-30 copper, so my money couldn’t have gone because of them. I’d like to know why, I know this is really small amount of money but I’m new to the game so every silver I make I’d like to save for future.. And since I’m not max level or doing dungeons yet I really don’t have that much money in my hands.
So.. Any ideas? Could this be my own fault or..?
(my other characters seem to still have their money.. for now..)

I doubt..a hacker would get in to your account to steal a louzy 90s,you can take that idea of your list.I think what happens,is that you got a rollback perhaps when you got disconnected or smth.Also do not forget when you sell stuff on the tradingpost,your paying a small fee,and if you only have a few silver available,it will drain fast.But all in all,stop worrying about money,start leveling to 80,you do not need to buy a thing untill 70 – 80 when you start gearing up.Also do not worry about travel posts,repair costs etc,gold will come later on.

Were you by any chance playing in Diessa Plateau? Some npcs in the game will take your money if you take bets, for example one of them is in Diessa with the cow catapult that you can bet silver with if he can shoot a cow at the tower. Basically, be sure to read what they are saying and offering, blindly clicking at random and answering whatever comes up might sometimes cost you money, maybe you just stumbled on one of these cases and gave out your money without noticing. I lost 80 silver like this when I was level 15-20, which was about all I had, and I learned a great lesson.