PHP: How do you safeguard application/server/database from your employees?
<p>What do you guys do (system/framework wise) to safeguard things like</p>

<ol>
<li>employees writing malicious code to destroy your server</li>
<li>employees reading all your database sensitive information</li>
<li>generally programmers that have access to your back-end and potential damages that they can do.</li>
</ol>

<p>Is there any PHP scripts that guards against these, etc.?</p>
