Zoom automatically adds me as an alternative host?

[SLGar]

Over the last 12 hours, I have received emails from two different colleagues, inviting me to their Zoom meeting as an alternative host.

They have since informed me that on setting up the meeting, a lot of other staff members automatically popped up as alternative hosts.

Has anyone experienced this before? I understand how to manually add/remove alternative host emails from a meeting, but I don't understand why it is auto populating seemingly random colleague emails in, on set up of the meeting.

Thank you!