I checked out my security log on account.microsoft.com today and found a worldwide campaign hacking into my Microsoft account with a currently unused alias, all unsuccessful. The frequency has dialed up quite a bit today.
I am not stressed out since I have a very good password and also multi-factor authentication turned on.
My log looks pretty similar. Some different countries though ;)…
Same for me…
Same here, so I had a look at https://haveibeenpwned.com/. The long unused alias that is used for login attempts only appears in one leak, namely at Gravatar: October 2020.
(Translated by Deepl.com)