@fueldesign Thanks for posting the link to the video. I am glad you found it helpful. I was really excited to share this as we saw one of our clients get penalized by both Penguin and Panda updates and we traced it back this domain issue with BC. We cleaned up URLs and updated the webmaster tools and within days their top rankings were back.
@Robert Bell - Yes, canonical tags are great and I recommend these in addition to removing the unwanted URLs in Google Webmaster Tools (no Search Console). Canonicals are only a suggestion and Google may not listen to them. If you are experiencing an issue with the worldsecuresystems domain being indexed doing the following 3 things you can be confident your problem will be fixed:
- Update all links on website to ensure that no indexed pages are being linked to on the worldsecuresystems domain
- Add canonical tags on all pages, suggesting to Google what the preferred version of the page is (as a backup, in case you failed #1 and for pages that are already incorrectly indexed)
- Use Google Search Console to remove all the links on businesscatalyst and worldsecuresystems domain.