Contrary to all fraudulent projects, there are those that bring investors not a bad income, but they are becoming less and less every day.
How to find a universal technology to find these projects?
This technology does not exist, you just need to be as careful and soberly assess a particular project.
Each project is unique. It should be understood that if the project failed and investors lost their money, this does not mean that the team initially planned a scam project. Its just that development could come to a dead end ... there could be disagreements in a team or something else ... There is no perfect solution for a perfect investment. The main thing is to not forget about the diversification of risks.