title: How do I use secret variables in TFS 2015 vNext Build Definitions?
body: <p>I'm using one of my vNext Build Definitions to publish the assemblies to a NuGet repository, after a successful build. The NuGet repository requires my credentials for me to publish.  </p>
  
  <p>If I click on the lock next to my password variable and mask the password, publication fails. If I leave my password, visible to all developers as free text, publication succeeds.  </p>
  
  <p>I assume that when I click on the lock that the password is still saved, but encrypted. I base this assumption on the MSDN documentation <a href="https://msdn.microsoft.com/en-us/Library/vs/alm/Build/scripts/variables" rel="nofollow">Use Variables [in TFS 2015]</a>.  </p>
  
  <p>Do I need to somehow decrypt this password with another build step, or should I just trust that no ill will come to me in this unsecured scenario?</p>