Think person A has a great software business idea. He also knows software programming and converts his idea to a mobile application. Then he needs to raise some money to launch the application, do advertisement, hiring staffs and buying stuffs. Then he searches through the internet and finds some venture capitals, angel investors, etc. and sending a pitch and demo from his application to encourage them making a deal and investment on his idea/application/business.
But person B who is one of these investors who received this email says "Why should I invest a lot of money and just get 10-20% equity? I can call Bob who is a computer software engineer and ask him to write a similar application for me, or even better than that! So I will have 100% of this company not only 10%!".
Is it possible to prevent such a thing to happen?