Symantec Endpoint Protection - Mac Installation Instructions

If you need to install an antivirus solution, download Symantec Endpoint Protection (SEP). You will need to log in with your LLNL Official Username (OUN) and One-Time Password (OTP). Locate the 'Symantec Endpoint Protection (SEP) - Home Use' section and click the 'OS X' button.

  1. Copy the downloaded file to the desktop of the Mac computer. The file may be named Symantec Endpoint Protection.zip or Symantec_Endpoint_Protection_14.3.0_RU1_Mac_Client_EN.zip, where version is the product version.
  2. Right-click Open With > Archive Utility to extract the file's contents.
  3. Open the resulting folder. You then install the Symantec Endpoint Protection client for Mac.

The resulting virtual disk image or folder contains the application installer and a folder called Additional Resources. Both items must be present in the same location for a successful installation. If you copy the installer to another location, you must also copy Additional Resources.

To install the Symantec Endpoint Protection client for Mac:

  1. Double-click Install Symantec Endpoint Protection.
  2. To begin the installation, click Install.
  3. To install a helper tool that is needed for installing the Symantec Endpoint Protection client, enter your Mac's administrative username and password, and then click Install Helper.
  4. After the installation, click Continue to finish setting up your Symantec Endpoint Protection client.
  5. To set up your Symantec Endpoint Protection client, take the following steps:
    6. Authorize the Symantec Endpoint Protection system extension. In the Security & Privacy dialog box, on the General tab, at System software from application "Symantec Endpoint Protection" was blocked from loading, click Allow.
    If needed, click the lock icon to make the changes. You must authorize the system extension for Symantec Endpoint Protection to fully function.
    About authorizing system extensions for Symantec Endpoint Protection for macOS 10.15 or later
    Allow full disk access. In the Security & Privacy dialog box, on the Privacy tab, make sure Symantec System Extension is allowed to access data and administrative settings for all users on your Mac device.
    If needed, click the lock icon to make the changes.
    Allow changes to network profile When prompted Symantec Endpoint Protection would like to filter network content, click Allow.
  6. Click Complete.