From thehackernews.com
If you use Zoom video conferencing software on your Mac computer—then beware—any website you’re visiting in your web browser can turn on your device camera without your permission. Ironically, even if you had ever installed the Zoom client on your device and simply uninstalled it, a remote attacker can still activate your webcam.
Zoom is one of the most popular cloud-based meeting platforms that provide video, audio, and screen sharing options to users, allowing them to host webinars, teach online courses, conduct online training, or join virtual meetings online.