"I have virus control, malware control, network security, etc. Yet, my app for network security, purchased from Apple store, has shown a Man in the Middle attack. "
With all of that junk installed on your Mac, it is a wonder it is still operating. None of that software is needed on your Mac. Most likely it is one those pieces of junk that is lying to you about the problem. They usually do that. Maybe if you can you use the program created by Etresoft, a frequent contributor, to create an EtreCheck report we can help you. It will provide a snapshot of your system which we can analyze to possibly determine the cause of your problem. Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.
https://itunes.apple.com/us/app/etrecheck/id1423715984?mt=12