I checked the forums to see if it was something new, wanted to do an reply and had to log in, I then got an incorrect login
Message said that an administrator had likely changed my password, and an link to the password recovery page there I typed my email.
Received an email:
Fra: The Elder Scrolls Online Forums <noreply.forums@elderscrollsonline.com>
Date: lør. 16. nov. 2019 kl. 23:35
Subject: [Elder Scrolls Online] Reset Your Password
To: (trunkated)
Elder Scrolls Online
https://forums.elderscrollsonline.com/en/
Reset Your Password
We've received a request to change your password at Elder Scrolls Online. If you didn't make this request, please ignore this email.
Change My Password:
https://forums.elderscrollsonline.com/en/entry/passwordreset/1625135/(trunkated)
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This changed my forum password but not the account or game as they was the same password. Not used other places but assumed forum and account was linked.
I wonder if this is the reason? they found that I used the same password for the forum who is low security and ESO who is high.