Zoom Meeting Security: 10 Tips to Secure

To secure your Zoom meetings, enable a waiting room and require a passcode for every meeting, and never share your meeting link publicly. These two settings block uninvited attendees before they can join, which stops the vast majority of “Zoombombing” incidents.

Why Zoom Security Matters

Zoom became a household name in 2020 when millions of people suddenly started working, learning, and socializing from home. That rapid growth also made it a target. Uninvited people sometimes guessed or found meeting IDs and joined calls to disrupt them, an activity that became known as “Zoombom

Core Security Settings to Turn On

Open the Zoom web portal (zoom.us) and go to Settings > Meeting > Security. The following options are the most important to enable:

• Waiting Room: When on, every participant is held in a virtual lobby until the host admits them. This is your first line of defense.
• Require a passcode for meetings: This adds a password that must be entered to join. Even if someone gets the meeting ID, they still need the passcode.
• Only authenticated users can join: This forces participants to sign in to a Zoom account before joining. It blocks people using the “join from browser” option with a fake name.
• Lock the meeting: Once all expected participants have arrived, the host can lock the meeting so no one else can enter.

How to Set Up a Secure Meeting

When you schedule a new meeting, you can configure security in the meeting options. In the Zoom client, click Schedule and then:

1. Check the box for Require a passcode. Zoom will generate one automatically, or you can create your own.
2. Check the box for Enable waiting room.
3. Under Security, select Only authenticated users can join and choose the appropriate sign-in option (e.g., “Sign in to Zoom”).
4. Click Save.

When you start the meeting, use the Security button in the toolbar to lock the meeting once everyone is present. You can also remove a participant from the meeting and prevent them from rejoining.

Best Practices for Sharing Meeting Links

How you share your meeting link matters as much as the settings. Avoid posting the link on public social media, forums, or any site that is indexed by search engines. Instead:

• Send the link and passcode directly to attendees via email or a private message.
• If you must share publicly, create a one-time link or use the “Regenerate” option to create a new link after the meeting.
• Do not use your Personal Meeting ID (PMI) for public meetings. A PMI is a fixed ID that can be reused, making it easier for someone to guess and join your future meetings. Use a randomly generated meeting ID instead.

During the Meeting: Host Controls

Even with strong settings, you may need to act during the meeting. The host has several tools:

• Mute all participants: This prevents background noise and also stops a disruptive participant from speaking.
• Disable video: You can turn off a participant’s video if they are showing something inappropriate.
• Remove participant: In the Participants panel, hover over a name and click Remove. They cannot rejoin unless you allow them.
• Report a participant: If someone is abusive, you can report them to Zoom. Zoom reviews reports and can ban users.
• Suspend participant activities: This is a nuclear option that temporarily disables all video, audio, screen sharing, and chat for everyone. It is useful if a meeting is under attack.

Common Problems and How to Avoid Them

One common mistake is leaving the waiting room off for “internal” meetings. Even internal meetings can be disrupted if a link leaks. Another is reusing the same passcode for every meeting. If one meeting is compromised, all future meetings with that passcode are at risk.

Another issue is the “join before host” setting. If it is enabled, participants can join before you are there, and you cannot control who enters. Disable this for sensitive meetings. Also, be cautious with screen sharing. Set it to Host Only by default, and allow participants to share only when needed.

Comparison: Zoom vs. Alternatives

Zoom’s security features are now on par with competitors, but the user experience differs. Microsoft Teams and Google Meet offer similar waiting rooms and passcode options. Cisco Webex has advanced security features for enterprise users. The key difference is that Zoom’s settings are often buried in the web portal, while Teams and Meet make them more visible in the scheduling flow. For most people, Zoom is perfectly safe if you take the time to configure it.

Cost and Security

Zoom’s free tier includes all the essential security features: waiting room, passcodes, and meeting lock. The paid tiers add administrative controls, such as SSO (single sign-on) and the ability to restrict where participants can join from. For personal use, the free tier is sufficient. For businesses, the paid tiers provide more oversight and compliance features.

Frequently Asked Questions

What is Zoombombing?

Zoombombing is when an uninvited person joins a Zoom meeting and disrupts it by sharing inappropriate content, shouting, or otherwise causing chaos. It happens when meeting links are public or when security settings like waiting rooms are not enabled.

Can someone join a Zoom meeting without the passcode?

If you have enabled “Require a passcode,” then no, they cannot join without it. However, if you share the passcode in the same message as the link, that security is weakened. Send the link and passcode separately if possible.

Does the waiting room slow down the start of my meeting?

Yes, it adds a few seconds because the host must admit each participant. But you can click “Admit All” to let everyone in at once. The slight delay is worth the security benefit.

Is it safe to use my Personal Meeting ID for recurring meetings?

It is less safe than using a random ID. Your PMI is a fixed number that can be guessed or reused. If you use it, always enable the waiting room and a passcode. For public meetings, create a new random ID each time.

What should I do if someone is disrupting my meeting right now?

Immediately click Security and select Suspend Participant Activities. This will freeze everything. Then, remove the disruptive participant and lock the meeting. You can then resume activities.

Does Zoom store my meeting recordings securely?

Yes, recordings are encrypted at rest and in transit. You can also set a passcode for viewing a recording. Be careful when sharing recordings; only share with intended recipients.

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