Weird new account password message

[Mhtsos]

I am sorry if this post is in the wrong section.

I recieved this:

Dear Mhtsos,

As you requested, your password has now been reset. Your new details are as follows:

Username: Mhtsos
Password: *******

To change your password, please visit this page: http://www.subsim.com/radioroom//profile.php?do=editpassword

All the best,
SUBSIM Radio Room Forums

The problem is I never asked or taken any actions to change my account password.

Any ideas how this happened?