title: How can I force user and password prompt when pushing to my git repository?
body: <p>I recently updated my local Git installation to <code>1.8.1</code> from <code>1.8.0.1</code>.  </p>
  
  <p>I'm noticing that, when I work on GitHub, it doesn't prompt me for username and password on push anymore.  </p>
  
  <p>This troubles me, as I see having to type user and password every time as a good security measure. (what if someone else uses my computer?)  </p>
  
  <p>I checked the following:  </p>
  
  <ul>
  <li><code>1.8.0.1</code> on another computer still asks for username and password.</li>
  <li>my account on github still enforces private/security controls.</li>
  <li>I am using https remote references, rather than ssh.</li>
  <li>For good measure, I checked in my <code>~/.ssh</code> fonder. Nothing wrong there.</li>
  <li>I'm <strong>not</strong> storing the login details in <code>~/.gitconfig</code> or individual <code>&lt;proj&gt;/.git/config</code> files.</li>
  <li>I'm also <strong>not</strong> storing anything github-related in <code>~/.netrc</code>.</li>
  <li>I created a new dummy archive: still doesn't prompt me for login.</li>
  </ul>
  
  <p>I couldn't find anything in the git <a href="https://github.com/git/git/tree/master/Documentation/RelNotes" rel="noreferrer">release notes archive</a>.  </p>
  
  <p>Does anyone know if this is a new git behaviour? How do I restore the prompt?  </p>