I've been carrying a medical info card containing everything that people may know about me should they find me unconscious and needing a doctor -- my name, address, birth date, insurance info, primary care physician info, emergency contact, prescription meds, med allergies, major health conditions, etc. Now, after carrying this car with me for years, it suddenly dawned on me, what if my wallet gets stolen? Wouldn't this card be a treasure trove for anyone looking to defraud me or steal my identity?

If you carry such a medical info card, how do you make it secure?