If you believe your Zoom account credentials may be compromised and in use by a bad actor, our first recommendation would be to change your password and make sure the new one is unique and complex. If you feel additional steps are warranted you can engage one or both of the methods below:
You can report any suspicious activity as listed in this article: https://support.zoom.us/hc/en-us/articles/4411726189581-Reporting-a-compromised-account
If you are uncertain whether any unauthorized activity has occurred on your account it may be advisable to check as well with our Zoom support team to see if they can help: https://support.zoom.us/hc/en-us/articles/201362003-Zoom-technical-support .
Please let us know if you have further questions, and if this helps you find resolution please like and mark as a solution.