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The Optimum App can't be installed after it has been downloaded on a Mac Computer

Apple has made a change to their security settings, and users with the following OS versions may experience this error, which will prevent them from using the Optimum App:

  • OS X 10.9.5
  • OS X Mavericks v10.10
  • OS X Mavericks v10.9.5 Security Update 2014-004
  • OS X Mountain Lion v10.8.5 Security Update 2014-004

After downloading and installing the Optimum App on a Mac computer and staring the installation process, the user may see an error message that says, "OptimumAppforLaptop_2.10.pkg" can't be opened because the identity of the developer cannot be confirmed. (see screen shot below).

If you experience this issue, please use the steps below to install the Optimum App:

  • Step 1: Locate the downloaded file (OptimumAppforLaptop_2.10.pkg) in a Finder window and hold down the "Control" key while clicking on the file.
  • Step 2: A list of options will be displayed, select "Open" from the menu.
  • Step 3: The user will see a dialog box that again displays the message "OptimumAppforLaptop_2.10.pkg" can't be opened because the identity of the developer cannot be confirmed. But this time there will be an "open" option. Select "Open".
  • Step 4: The Optimum App installation will begin; follow the on screen instructions to complete the installation.