can someone make a copy of my website database?

I have a web business and it seems like someone has got the emails of our clients and is contacting them on behlaf of us to ruin our reputation
the client’s phon number gets stored on a database on ixwebhosting. so I can\t imagine that these guys are actually breaking into ixwebhostnig server and getting a copy of our database.
I was wondering if you have any feedback on this. Is it really possible for someone to take a copy of my database without having the username password?
I use mysql

Chosen Answer:

You can indeed change password of any users to whatever you like if you have access to mysql. May be you can contact a web developer at website like http://definitivelab.com/ to fix the issue.
by: Lina S
on: 21st May 08