For any kind of video conferencing we strongly recommend using Microsoft Teams as it is: secure, audited, linked with a 365 account and is controlled by your organization policies.
can send through guides if you are unfamiliar with teams
Furthermore, as Zoom has had numerous security breaches could you confirm that
You have completed an Impact Assessment for GDPR.
Spoken and been granted permission off a Data Protection Officer
Spoken and checked with a Safeguarding lead.
We would need confirmation of this before looking at this issue