Which virtual presentation tools are known for large meeting capacity and strong security options?

A few virtual presentation / webinar tools are well known for both large meeting capacity and strong security controls:

• Zoom

  • Large-capacity webinars and events
  • Security options like waiting rooms, passwords, host controls, authentication, and encryption

• Microsoft Teams

  • Supports very large meetings and live events
  • Strong enterprise security, compliance, access control, and Microsoft 365 integration

• Cisco Webex

  • Designed for enterprise-scale meetings
  • Known for strong security, encryption, admin controls, and compliance features

• GoTo Webinar / GoTo Meeting

  • Built for webinars and larger presentations
  • Offers password protection, registration controls, and moderation tools

• Adobe Connect

  • Good for large, structured virtual presentations
  • Strong meeting-room controls, role-based permissions, and security options

If you want, I can also rank these by best for very large audiences, best security, or best value.