Easy tutorial regarding securing controller using session?

do you have any easy docs in "Securing Back-end" other than the invo sample app, because it's using Phalcon version is 1.0.0. Using session to secure a controller, because I can't use __construct method on controller and I don't want to put a security checker in every method of controller.

Vokuro has excellent example of using ACL, backend form validation, and even login throttling. it uses 1.1.0 https://github.com/phalcon/vokuro


thanks for the link Jeffrey..... I wish Phalcon has a mini blog tutorial(just like CodeIgniter's Documentation) for this one... its very essential since it has a Login functionality...

slowly adjusting to Phalconphp.... :)