Why am I suddenly receiving spam calendar invitations/appointments in Outlook (Microsoft 365 Family).

Actually I think from what I see in the message that it's a good indication that the live.com site/organization has been hacked. How does it feel to know that ALL your personal information, emails, site surfing, powerpoints, spreadsheets and god knows what else is completely accessible by hackers? The dark web welcomes you and your credit card with enthusiasm.

Why add features like these without any notification and make them OPT-IN by default and NOT OPT-OUT by default? So annoying that my phone woke me up with all of these span notifications. If I didn't have so much tied to my account, I would get rid of it, I used to LOVE Outlook and now it's just a spam catcher for me. :(

I am unable to complete any of these suggestions because those options do not exist.

I changed these setting forever ago and still get them all added to my calendar then it blows up with alerts for events. I now have hundreds. If I opted out this should not be happening. Is microsoft going to fix this or what.

So far I have not received any calendar invites since I made the changes in the Tracking Section. The only item I do have checked is "Automatically update original sent item with Receipt information". This seems to have worked for me.

In the Calendar Section, I do not have any items checked under "Automatically accept or decline requests".