title: What is SOAP injection?
body: <p>I am new to WCF and recently came to know that Web services are prone to many kind attacks and one among them is 'SOAP injection'.</p>
  
  <p>1.Can anyone explain to me what an SOAP injection means?<br>
  2.At which Transport level does this attack occurs?<br>
  3.Does using of https protects the service completely? 
  4. Is there any way we can validate the incoming soap messages in WCF ?</p>
  
  <p>Thanks,
  Alex</p>