In addition to the ActiveX settings, several other security settings within the Internet Explorer web browser can increase the risk to your computer system. These settings determine how certain risky files, actions, and downloads are handled. These settings include:
Display mixed content.
Installation of desktop items.
Allow Web pages to use restricted protocols for active content.
Don't prompt for client certification selection when no certificate or only one certificate exists.
In all instances, you want to be prompted before any risky content is downloaded or displayed. If this content is downloaded or displayed automatically, without prompting, you could introduce harmful files or viruses from unsafe websites to your PC.