udo spctl --master-disable</code>.</li>
  <li>Go to System Preferences → Security and Privacy → General → Allow
  apps downloaded from, then select “Anywhere”.</li>
  </ol>
  <p>Beware that steps above degrades security of your system. To revert
  the settings, follow the steps below.</p>
  <ol type="1">
  <li>Go to System Preferences → Security and Privacy → General → Allow
  apps downloaded from, then select option to “App Store and identified
  developers”.</li>
  <li>Open terminal an