title: Symfony2 setting up (my own) secure Variables
body: <p>Where is the best place to put sensible data in Symfony2, i.e. PayPal Variables (API Username, Password etc.)?</p>
  
  <p>Since <strong>app/config/</strong> is not accessible from outside, I think this might actually be the best location. Am I correct?
  If above is correct, can I add an additional <strong>paypalconfig.yml</strong> file to the <strong>app/config/</strong> folder or is it recommend to add those things to <strong>app/config/parameters.ini</strong>?</p>
  
  <p>How can I access that data later?</p>
  
  <p>Thanks!</p>