I can't remember any specifics I'm afraid, it was probably 10+ years ago. I remember being prompted to change it (either by mail or in the client), I never did

I can't remember any specifics I'm afraid, it was probably 10+ years ago. I remember being prompted to change it (either by mail or in the client), I never did and I never logged in either. The account is gone. Since it was that long ago I can't rule out simply misremembering.