Enlarge (credit: ANDRZEJ WOJCICKI / SCIENCE PHOTO LIBRARY / Getty Images) In the first half of this guide to personal digital security, I covered the basics of assessing digital risks and protecting what you can control: your devices. But the physical devices you use represent only a fraction of your overall digital exposure. According to a report by Aite Group, nearly half of US consumers experienced some form of identity theft over the last two years.