This is not a thing for only cryptocurrencies, every scam on every field is a global issue. And since it is a free market, scammers and hackers may operate alongside hence it is always being announced that investors must stay cautious especially to unknown emails which offers enticing rewards
Since this is the internet era any scams that takes places in the internet have a global implication. The difference between crypto scams and the rest of the methods is that every transactions carried out in the crypto space can be traced and it is possible to catch every fraud that has happened in the blockchain. My prediction is that in the next ten years majority of the scams that happened in this market will be traced and the person or group behind those will be punished.