Securing the Zoom Environment When Your Workforce is All Remote

Over the past few weeks, a tremendous number of changes have taken place around the world. For many, Zoom conferences have become a primary means of staying in touch with colleagues, prospects, and customers. Even school systems around the world are relying on Zoom for ensuring that students can still attend classes and partake in distance learning.

However, as with any new technology, there are new risks to contend with. In a recent Boston Globe article, journalists noted that given the relatively simple URL schema that Zoom uses (a ten-digit, randomly generated number) and a permissive set of defaults that reduce friction for meeting attendees, it’s possible for unauthorized attendees to join meetings, either disrupting them or stealing sensitive data.

Settings to Secure Zoom

Zoom Security settings can be set by both users and admins. On the user level, individuals can set their own security parameters. If an administrator makes changes under Admin Settings, they will apply globally to all users.

Zoom User Security Settings:

Log in to account, click Settings, and navigate to the Meeting tab.

Zoom Personal Settings screenshot

Zoom Admin Security Settings:

Log in to account. Under Admin, select Account Management, Account Settings, then click the Meeting tab.

Zoom Account Management menu

The following settings are recommended to be turned On:

  • Require a password when scheduling new meetings

Zoom Settings screenshot 3

  • Require a password for Personal Meeting ID (PMI)
    • All meetings using PM

Zoom Settings screenshot 4

  • Embed password in meeting link for one-click join

Zoom Settings screenshot 5

  • Require password for participants joining by phone

Zoom Settings screenshot 6

  • Screen Sharing
    • Host Only

Zoom Settings screenshot 7

  • Identify guest participants in the meeting/webinar

Zoom Settings screenshot 8

  • Waiting room
    • Guest participants only – this will mean that your co-workers are not required to go through the “waiting room” before joining, but outside attendees will

Zoom Settings screenshot 9

The following settings are recommended to be turned OFF:

  • File transfer

Zoom Settings screenshot 10

From the Admin area, you can also click on the Lock icons to lock each setting. This locks those settings from being able to be changed at the user level.

Zoom Settings screenshot 11

Using GreatHorn to Detect and Stop Zoom Impersonation Attacks

When it comes to spotting these attacks in the wild, your basic email security training skills still apply. Make sure you are checking the actual sending address on inbound emails, especially if their Display Name appears to be Zoom.

Pay extra attention to spelling mistakes in domain names and mentions of Zoom in subject lines trying to grab your attention. Malicious emails try to entice the recipient with a compelling call-to-action, such as resetting a password or validating an account or subscription. Ensure that you are not downloading attachments or clicking on links without validating the sender. GreatHorn provides contextual analysis on your emailing relationship with the sending address, which helps hone in on first-time senders trying to impersonate your friends or colleagues. Combine relationship scoring with Zoom keyword detection and suspicious link identification to surface Zoom impersonation attacks in your tenant today.

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