The latest MySQL servers come with a validate password plugin. This plugin configures a password policy to make server MySQL more secure.
While changing the password, I got the error: ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
Remove MySQL Validate Password Plugin
In this option, you can simply uninstall the validate_password plugin from your MySQL server. Login to the MySQL command prompt as root user and run the following command on command prompt.
If you don’t need to uninstall the plugin, then simply change the password policy of MySQL.