You can reset your password on your Blackhatworld.com profile.
Blackhatworld.com may occasionally force a reset of passwords as a precaution. If this happens, you will see an email like the one below from Support@blackhatworld.com - Please be sure to check the 'From' email address.
To complete the reset, please click the 'Reset password' button and follow the website instructions. Once done, you'll see the below:
You can find more information on Blackhatworld here.