Identity is now a commodity. As personally-identifiable information circulates increasingly online, thieves are hell-bent on stealing it. Credit card information, names, addresses, and dates of birth are just some of the data points that can trade for money online - and help to trash their owners' credit scores, or worse. ID theft is a growing problem that accounts for just under half of all frauds in the UK. The article discusses the technologies that can be put in place to prevent it.