Zoom has become a common tool for remote work, but like any software, it can be used for both good and nefarious purposes. To avoid privacy concerns and unwanted virtual guests, users can require meeting passwords and use waiting rooms to control who joins their calls. Additionally, using unique meeting IDs instead of personal meeting IDs can prevent accidental overhearing or eavesdropping. It's also essential to default to having audio and video off when joining a meeting, ask for permission before recording, and be cautious about what is shared in private chats. By following these tips, users can stay secure on Zoom and maintain their trust with colleagues and clients.