CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'password';
Creates a new MySQL user.
GRANT ALL PRIVILEGES ON my_database.* TO 'newuser'@'localhost'; FLUSH PRIVILEGES;
Grants full privileges on my_database to newuser.
REVOKE ALL PRIVILEGES ON my_database.* FROM 'newuser'@'localhost';
Revokes all privileges from newuser.
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'newpassword';
Ensures secure authentication.