That's part of it, but it's also because E2E is a specific security guarantee which most cloud meeting providers (including in most cases Zoom) don't provide.

That's part of it, but it's also because E2E is a specific security guarantee which most cloud meeting providers (including in most cases Zoom) don't provide. Contrast with Gotomeeting's claims[0] that data transmitted between their servers and their users are encrypted using TLS. This is a weaker claim. [0]https://www.gotomeeting.com/meeting/resources/hipaa-compliant-video-conferencing https://www.gotomeeting.com/meeting/resources/hipaa-complian... (third table)