unfortunately in the world of crypto this is something possible to happen, when someone invests in some altcoin this person should consider the hypothesis that this altcoins can fall to  $1 overnight. I invested in an altcoin that was worth 3000 satoshi and went to sleep and when I woke up I left the house and when I came back I turned on my computer and went to my yobit account and I see the altcoin was priced at 4 satoshi, I thought it was a mistake , but in fact here was real, Dev da altcoin stole funds from the project and ran away. was my first bitter experience of the many bad experiences I had in the world of altcoins. In the case of bitcoin I find it very difficult  to happen