Hack Gmail Password using Hydra in kali Linux

Open your Kali Linux terminal and Type xhydra and press enter

You can also do this manually. First Open Your Kali Linux and Follow this path
Kali Linux->Passwords Attacks->Online Attacks->Hydra

In the target tab, select
Single Target: smtp.gmail.com
Protocol: smtp

In passwords tab, select
Username: Type Victim Email ID
In the passwords, select the password list option and browse to select your
Passwords file. Here I have used my custom password file.

Now select start tab and click on start button, the password cracking begins and result is as follows