Digital Sherlock Holmes

Kathryn Ryan talks to Alan Pearce, a journalist and digital privacy expert who advises other journalists, aid workers and human rights advocates in how to protect themselves online. The answer he says is "a few good programmes and a bit of common sense". Sherlock Holmes might describe it as "elementary" and in fact Alan's latest book uses the character of Sherlock Holmes to explain in simple terms what the threats are and how to protect yourself - It's called The Sherlock Holmes Handbook for the Digital Age.