Either prompt the user too much, or display a verification code. Others' scripts passed the verification before the captcha image even appeared.

I have some suggestions for Binance: 1. Backtrack 50 airdrops, users who have grabbed more than 40 times need to be thoroughly investigated. 2. A verification code can be issued, but it needs to be more difficult; too simple of a verification code cannot stop scripts and cheats, but it stops ordinary people!

#alpha