Mobile phone security expert David Rogers of blog.mobilephonesecurity.org explains how "phone hacking" is done, and how you can better protect your mobile phone's voicemail. A lot of mobile customers are bewildered by the events going on in the world press at the moment with all this talk of 'phone hacking'. Many of my friends have asked me what they can do to protect their phones and what the whole thing is about. The truth is, there is no actual phone hacking involved and it is also wrong to call what went on hacking.