4. airdrop type Sent 0.001ETH - 0.1 ETH
it's some of the characteristics of scam airdrop be careful in using email do not use the primary email connected to the exchange.
Airdrops are free, if you need to transfer ETH to the other party!
This is definitely a scam. This is a scam designed by scammers!
Never reveal your private key! This is the most important thing!