Identity theft is so pervasive in health care that, according to a2013 ID Experts data security survey of 91 healthcare organizations, 90% of respondents had experienced a data breach in the previous two years and 38% had had more than five incidents. The leading causes of a breach are typical for any business: a lost or stolen computing device, an employee error, a third-party snafu. There's also "Robin Hood fraud," in which someone knowingly gives a friend or family member information to fraudulently receive health care. But one cause has grown in importance: Criminal attacks have doubled in the last four years, according to the survey.