- A high-yield investment program (HYIP) is a type program which promising very high return on investment but is very high risk. It operates as a ponzi scheme or other form of fraud, by not paying back with no response after some time, or suddenly disappearing with all the investor's funds.
- Cloud Mining Contracts
- There is a high amount of fraud in this sector. Read this article for a more in-depth look at the topic.
- Common sense, there's no way to make free BTC.