I got locked out..

You've tried to sign in too many times with an incorrect e-mail address or password
And just for information, I tried once. I did not change my password, or my account information including my question/answer, yet none of it works. First time I tried to log in, I got incorrect pass/this error. Is anyone else getting it randomly, or did someone else just try and get into my account/actually get into my account?

I've googled it and read many cases of this, but can't figure out a relationship since I hadn't changed my password.