Apple security breached using “hide my email”

If Hide My Email addresses are getting created, your Apple ID would appear compromised.

If you think your Apple ID has been compromised - Apple Support

Enable two-factor authentication as well, if that is not already enabled.

User3888 wrote:

Thank you- I thought so, but how? Apple has always been so secure, and that’s one of the reasons I love it.

Nobody here can know that. Password re-use is utter doom, phishing is a possibility, general lack of two-factor authentication (which provides a last-ditch means to prevent take-over), maybe sharing the password, etc., how an Apple ID can be or was compromised varies.

User3888 wrote:

I think Apple should revoke it’s Microsoft sharing software and remain as it was pre that bad desciion. I am thinking that opened the gate to compromised software. Apple is being too nice to Microsoft- whose ultimate goal is takeover. Do not trust android or Microsoft.

I am unclear what was being referencing here around Microsoft, nor how it might relate to Hide My Email.