I really like those projects that bring new technologies, as well as created to combat fraud, I think that MalwareChain among them.
You do not see the most important thing, antivirus on the blockchain, this is a number of features that have already been implemented.

Investing in the early stages of projects is very profitable, but it is usually associated with increased risks for investors. POS mining is a great mechanism for investors to get a stable income, while doing nothing.