Will my ada safe if i do some business with nft?

Hi, i have a question about nft.

I heard that nft on Ethereum could become a scam. They send nft to a user, if that user send or sell the nft out of their wallet, then their wallet will be cleaned out, and their tokens will be gone!

Is this safe on cardano, on yoroi wallet? Currently, I invest some Ada in a nft project. I sent them some Ada through address, and in return, they sent me back some Nft. Is this safe at all? Is it safe if i try to sell them on another platform, ex like cnft?

I am new to cardano, hope you guys can help.

If you already have an account with a cryptocurrency exchange, you can purchase Ethereum on it and send your crypto to your MetaMask wallet.