This is my history:
My blog (wp 2.5.1) was hosted on servage. I start receiving more visits, so I decide to change to a more powerful server.
I downloaded all the wordpress files and then I uploaded them to the new server (226mb).
I uploaded the DB with BigDump (the latest version), but (yes, a very big big mistake of my part) I forget to delete the DB and the BigDump file from the server (and I hasn´t an index file, so anyone could access it)...
Next day I found that everything was different: Blog name (It was changed to Shit), passwords, the Post were gone............
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I deleted everything (every file), and then I uploaded them again. (The DB and the Bigdump too). Everything was fine, but then, it happened again. Someone hacked my blog (this time, I didn´t forget to delete the Bigdump and the DB)....
WTF ? The only thing I know about this guy is his e-mail and his nationality (Colombian).
What do you recommend me to do ? Do you think there is a bug in wp ?