if I think personally a safe way to invest in cryptocurrency is :
1. the project runs according to the roadmap and whitepaper that has been made;
2. cryptocurrency that we invest in already has a product;
3. the team always updates about the progress that is happening in the project that we invest;
4. invest in project that are in the top 1-500 in coinmarketpcap (have a high volume);
5. the project we want to invest has been running for a long time (if I personally never invested in a new project), because investing in new project has a greater risk than we invest in old project.
Here is a simple example. It is about investing in the top 500.
See if the project is really good and he conducted Bounty, you can safely buy the tokens of this project on ForkD. If you have done a full analysis and see the potential in the project. Because hunters often sell coins there very very cheaply. Say for $ 20 you can buy a large number of coins. And there is a big chance that in the future $ 20 will turn into $ 20,000. It's all about analysis.
that's right, analysis, buying for a pittance, a great scheme, but also do not invest those funds that are afraid to lose, it is ideal to do this on an ongoing basis, investing free funds