This mythical "once-in-a-lifetime" opportunity can lead people to transfer funds quickly in hopes of receiving an instant return. The FTC says that, in this scam, an "investment manager" you have never heard of reaches out to you with an incredible investment opportunity.
You may not be able to sell your investment when you want to. If you log into your account with the platform, however, you may be blocked from withdrawing your money or only able to access your cash if you pay an exorbitant fee. Many crypto phishing scams aim to get you to share your private crypto wallet keys, usually by sending an official-looking email that asks you to log in to your account.
Just as you wouldn't share your credit card number with a stranger, keep your private keys somewhere safe. Never give wallet keys or access codes to anyone. The wallet credentials will usually be accurate, but the withdrawal will not be possible due to a lack of funds for gas fees (e.g., ETH on Ethereum, CRO on Cronos).
On one side, the lack of a singular governing body allows community-wide decisions and can open the doors to additional opportunities.