As a precaution you should enable MFA for you account and change your password. I would be worried about that someone gained access and is now using the email address to sign up for services etc. If the account was compromised you could also loose your domain quickly if this is the account email for your registration provider and the use it to gain access and transfer the domain.
I already have MFA. Looks like you didn't get my question. How are we going to prevent anyone from using your email id in a signup form for some service? Spammers/abuser don't have access to my email account they just use my email id. What seems to be happening is some spammers creating fake accounts for services using randomName@myappsdomain.
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As a precaution you should enable MFA for you account and change your password. I would be worried about that someone gained access and is now using the email address to sign up for services etc. If the account was compromised you could also loose your domain quickly if this is the account email for your registration provider and the use it to gain access and transfer the domain.
I already have MFA. Looks like you didn't get my question. How are we going to prevent anyone from using your email id in a signup form for some service? Spammers/abuser don't have access to my email account they just use my email id. What seems to be happening is some spammers creating fake accounts for services using randomName@myappsdomain.