Thieves collect personal data such as home addresses and contact information, but also details of physical or mental conditions and prescribed medications. Individuals can be threatened with public exposure of their data, especially those in high-profile positions, and future health benefit claims or even border crossings could be affected.
Compromised personal health data has a much greater and lasting impact. When a credit card is stolen, card numbers are changed and charges in question are typically reimbursed. Conversely, your health record stays with you for life, leaving you more vulnerable to future problems.
Full article: Michael Green: Personal health information has a value on the black market | Vancouver Sun