‘I’m not Snow White. I have to think like a criminal’: how I became a burglar for hire

Jenny Radcliffe is a professional people hacker' - someone who claims she can get past anyone and get in anywhere. No building is secure. How does she do it? Plus, an extract from her memoir

Do I look like someone to mess with?" says Jenny Radcliffe, folding her arms in a really-don't-mess-with-me kind of way. Her tattoos seem to be making the point, too. On her left forearm is a Latin phrase - facta non verba, actions not words - with a pair of devil's horns; on her right, a feather, from the wings of an angel. Which is she, I wonder. Her boots - DM-like, many eyelets - suggest no angel; but the T-shirt is emblazoned with Trust Me".

Radcliffe has an unusual job: she's a social engineer. Also known as a professional burglar, physical penetration tester ... though it's difficult to say that one to old ladies on trains," she says. Yes, I can see that.