In the morning, I had nothing wrong, when I did it. But I did it again around 1 p.m., I had a trouble. What did I do? I wanted to receive my mails from de.yahoo.com.
After entering Yahoo!-ID and Passwort, I clicked [Anmelden] button. Sooner I got the warning page.
So, I changed my Passwort.
On Yahoo! DEUTSCHLAND, something wrong happened?? Does someone have any information?