Zoom

Zoom is a popular online meeting conference tool. Zoom has faced criticism for its security practices. The Federal Trade Commission (FTC) required Zoom to enhance its security measures after allegations that it misled users about the level of encryption provided, which undermined user confidence, especially for sensitive communications​.

Alternatives

HiveTalk

HiveTalk provides unlimited number of conference rooms and users without call time limitation without any costs. It's free open source and the best of it is that you can connect your Nostr profile so people will recognize you and be sure it's you.