Here i have prepared a list of characteristics that are common to many frauds and which you should avoid if you do not lose your money.
1. Unrealistic Claims - Ponzi scheme
2. Mining in the Cloud - Fraudulent cloud sites are trying to lure investors to promise easy profits simply by investing in core capital.
3. Bitcoin Package Packages (BIP) - These packages are very profitable at first, but due to the Ponzi principle they operate, they have limited durability and end when new users stop coming.
4. Multi Level Marketing (MLM)
5. Lack of key information - No white paper
6. Insufficient or no information about members of the development team
7. No real support
These are the points i follow, and it is up to you to follow them too.