The one urgent thing that worries today’s world more than ever is privacy protection and security measures against the leak of sensitive information. Each one of us occasionally shares sensitive information via the Internet, be it our names with photos, our addresses or identification documents (e.g. to open an online bank account you have to send your scanned documents for verification). Mostly, we do not even realise the risks we are undertaking. Almost every day we read in the media about a company that has had a data leak, and these include giant companies such as Yahoo.
