ProctorU

[cookderosa]

ProctorU is really dominating this space (3rd party remote proctoring via webcam) and I expect their business model and security protocol is being scrutinized constantly by companies and institutions they are "pitching" to every time someone registers their institution to use them.
ProctorU has picked up a ton of new clients, so my trust is in the collective.
Lots of FAQ regarding security if you're interested- https://www.proctoru.com/institutions/