The use of the Internet for transfer private or confidential data raises serious questions about the security of these transfers. Since medical data are protected all over the world, the developer of the RFA website paid high attention to these requirements. A good summary of confidentiality and data security in cancer research can be found at the website of the National Cancer Institute

Medical data are protected by law in all countries around the globe [1]. The Internet as a comparatively new way to share medical information is not always specifically mentioned in law regulations, but all rules of nondisclosure of private information applies to this new medium as it would to paper based interaction.[1]
As a rule of thumb, medical sensitive data should be handled like credit card numbers. You may have already bought something on the internet and your credit card number was (hopefully) transferred through a secure SSL connection.
The RFA webserver is equipped with this software, which allows a secure encrypted connection between you and us.
Without any encryption, data in the internet are readable for anybody with adequate internet access and knowledge. The use of encryption in the Internet however creates a very secure mode to exchange data. For example, since the introduction of internet shopping, no misuse of encrypted transmitted credit card number is known.

Therefore we encourage the use of the safe Internet connection between your browser and our encryption enabled webserver. Our webserver supports strong encryption. Strong encryption can only be established, if your browser also supports strong encryption.

The following pages may help to understand how encryption works and demystify the Big Brother in the virtual space.

How encryption between your browser and the RF-ablation webserver works

Practical tips how to establish and ensure a secure connection

Nevertheless. Most abuse of data occur from people within the organization [2].[2] We have taken great effort to protect the databases and backups from unauthorized access.

[1] [1] Health insurance portability and accountability act of 1996 (public law 104-191)

[2] [2] For the Record: Protecting Electronic Health Information. Committee on Maintaining Confidentiality and Security in Health Care Applications of the National Information Infrastructure. National Academy Press, Washington, 1997.