So how we make altcoin investment safe ?
if you want to be sure that you will be not in loss near 12-18 months than you should invest in top-10 crypto according coinmarketcep list. everithing rest is high risk. noone own you.
what we can do is : First, analysis the project about the team, roadmap, community, etc. Then repeat it for some project as much as you can do. this analysis is aim to make an initial observation. Second, we should make a strong diversification of our investment in alternative coin to lower the risk. But in my opinion it does not always mean we should put all of our investment in top-10 crypto, though put investment in top-10 crypto is good choice enough.