This facility is replacing the old traditional fax with the internet fax. Your internet fax service providers clam the enhanced security feature to protect your fax docs from any intrusion. They assign you a virtual free internet fax software and link it with your email id for transferring your fax communication to your email id. This process greatly enhances the security of your incoming fax. But the thing you need to remember is that your fax service providers are not guilty to any of you loss in the case of information leakage if done at your side, either as a result of email hacking or stolen password.