Do you know how well your base is protected or do you fear getting getting the classic "All your base are belong to us" on your screen when you logon in the morning?
A good way to get a comfortable feeling in your current security setup, is by knowing which flaws it has. There are many ways to do it and often you will see consultants being hired to figure out your state of the union. Sure it can work out well by doing so, but you can get a bigger benefit from their services if you have already done your initial thoughts before they show up.
As developers and new into the security scene there are many tools that will help us doing the initial risk assessment, when you leave this session you will be able to go back home and start your assessment.
By knowing your risks, you can start mitigating them...