Login and Password Hacked

Hello,

I’ve been on wordpress 3.1 since it came out, upgrade from my dashboard when I saw the update alert.

When I tried logging in today, my credentials wouldn’t work. I followed the tutorial using myPhpAdmin and saw that my login information was changed to [email protected]… googled and found some other sites hacked by these hackers :/

I changed my credentials but is there anything else I could do to make sure it doesn’t happen again?