@iamsoft007, you have learned a hard lesson, but thankfully, you have not lost much in terms of assets. Do as @veleje says, and use your Master key to change all of your keys. He has given you a lot of best practices, and good advice, so take it to heart.
This is a good lesson for everyone, so I've upvoted and resteemed this article as one of my daily post promotions for the @mitneb Curation Trail Project. It will be featured in the @mitneb Curation Trail Project Daily Report for 22 FEB 2018.
Cheers, and thanks for writing this article for everyone to learn from!