MacBook answered a call on its own, that didn't show on my phone, and lasted over 54 hours.

Has anyone experienced this before? I heard a call coming through on my macbook a couple days ago but it didn't show on my phone so I didn't pay much attention to it. Today I open my laptop to see that my computer answered the call on its own and it was over 54 hours. I immediately got concerned when I didn't recognize the number and hang up. I go to check to screenshot and there is no record of it either on my call logs or FaceTime. I also checked my phone and iPad just in case but of course it doesn't show up either. I am very concerned if someone was able to hear what was going on around the laptop for over 54 hours. I contacted apple but since I don't have a picture or screenshot they don't hame much to investigate and can't really do anything, they just advised me to change my passwords.

If anyone has experienced this please share. Or if you have any tips.