Scams have been a problem since the world existed, certainly not born with the crypto. There is always someone who tries to get an unfair advantage by deceiving the good faith of honest people. However it is quite easy to defend oneself, very often those who let themselves be scammed deserved it.
I have heard that there is a lot of hackers working in North Korea, and they are even more dangerous than scammers. They say that many of North Koreas hackers secretly but officially operate in the General Bureau of Intelligence, which is engaged in secret operations. Attacks on cryptocurrency storages allow North Korea to receive financial resources that are difficult to track and which are subject to less state supervision and regulation than the traditional banking sector.