About scamming and phishing
Fraudsters have always existed and will continue to exist. In the future, there will probably be network-based mechanisms to protect yourself against fraudsters, but so far the crypto industry is too young.
Currently, the police are reluctant to investigate cases of crypto fraud. The police show zeal only if the case is egregious.
How to protect your assets
Here are some tips for those who new to cryptocurrency.
Use only official or time-tested wallets. Triple check if the software wallet you downloaded doesn't belong to scammers.
Use 24-word seed phrase for backup and strong password for encryption.
Never reveal your private key to anyone. Store your seed phrase or private key in a secure and hard-to-reach place.
For day-to-day small payments use devices like Tangem crypto-note.
Avoid phishing sites. Do not store large amounts of cryptocurrency on a computer connected to the Web.
Do not trust those who give away free ADA via faucet or any promotions. IOHK never gives away ADA for free.
Do not store your assets on a cryptoexchange account.
Be wise!
And here are Cybersecurity guidelines for Cardano users.