title: Dynamic PayPal button generation - isn't it very insecure?
body: <p>I am just wondering here.. Aren't the PayPal buttons that are dynamically created, very unsecure, and easily "hackable"?</p>
  
  <p>Like so:</p>
  
  <pre><code>&lt;form name="_xclick" target="paypal" action="https://www.paypal.com" method="post"&gt;
  &lt;input type="hidden" name="cmd" value="_cart"&gt;
  &lt;input type="hidden" name="business" value="me@mybusiness.com"&gt;
  &lt;input type="hidden" name="currency_code" value="USD"&gt;
  &lt;input type="hidden" name="item_name" value="HTML book"&gt;
  &lt;input type="hidden" name="amount" value="24.99"&gt;
  &lt;input type="image" src="http://www.paypal.com/en_US/i/btn/btn_cart_LG.gif" border="0" name="submit" alt="Make payments with PayPal - it's fast, free and secure!"&gt;
  &lt;input type="hidden" name="add" value="1"&gt;
  &lt;/form&gt; 
  </code></pre>
  
  <p>Changing the price of the product is straight forward when you can modify the code with, say, FireBug.</p>
  
  <p>The reason I am asking, is because I might/will start developing an  E-Commerce kinda system, where the products can be added in that system, without doing it in PayPal.</p>