Hackers

Maybe you already know it,maybe not.But I have a really really big problem with my doll.So neraly every month I got hacked.I don't know why ,because I'm non-SS,I have no DKNY or other rares clothes,I'm only 1 year here and I have never beeen SS.So what's the problem that someone or more people want to hacke me? I don't know why.But it's really bad and always things are other.Here some moments where I got hacked: first time: It was before I have gone on holidays.I got the password to my best friend because I wanetd that she log her in in my doll to get money. But when I logged me in the next day,my club has gone and many money(36$).I was really sad . second time: I didn't kow it but then I saw my club has gone( the 2nd one) And all the next times my money has always gone,1 time my clubs where I'm member were gone,1 time some friends were deleted and so...it's really bad and sad,and I really hope it will stop for ever.But I don't think so.There is maybe a person which really wants my doll or only that I'm feeling bad. Do you know soemthing what I should do,to stop it?