Kali Linux is a great OS for hacking and penetration testing, but as it could be used to hack others it could even get you hacked easily. So it is recommended to use Kali Linux in live mode but during the time of installation we are asked for credentials so we enter them manually. But when we use Kali Live, it uses some default credentials. Here is the list of these credentials:
Kali Linux Default Credentials
Kali Linux user policy has changes after the version 2020.1. So, Kali Linux has 2 credentials depending on the version of kali Linux you are using.
For Versions before 2020.1
Root username : root Root password : toor
For versions after 2020.1 including it
Root username : kali Root password : kali
For vagrant images(based on their policy)
Root username : vagrant Root password : vagrant
Default credentials for tools
username : beef password : beef
username : root password : (blank)
Note: Here (blank) means you have to leave the password space empty.
username : admin password : <Generated during Setup>
username : postgres password : postgres