Keeping in mind that confidential data is being shared and discussed in meetings, having the following or at least one of them will be really good for security measures:
Notify if anyone from the meeting is using another app to record their screen.
Make Webex appear blank if permission is not granted to a third-party recording app and/or participant (the same way you can choose in Webex which app to share and the rest is blank). This should be a setting.
We plan to introduce video watermarking to address this issue