Locate and follow the uninstallation instructions provided by the software vendor. Typically, many vendors have an uninstallation application in their installation disk image (*.dmg), or alongside the main application in the Applications folder. You may try:
Open Finder > Applications.
Locate the security product folder you want to remove. Open the folder, and double-click the uninstallation application inside the folder (if any).
Confirm that you want to uninstall the product. In the Authenticate window, type in your administrative credentials, and click OK.
When asked, restart your computer to complete the uninstallation of the product.