The most important step to take in protecting yourself from identity theft is assuring your sensitive information is secure — whether it is on paper, online, stored on your computer or on a mobile device.  Store documents that have your personal information, including financial documents, Social Security, Medicare and credit cards in a safe place at home and at work. Limit what you carry. Leave your social security card and Medicare card at home – unless you are going to need them for a specific reason.Don’t share your personal, financial or health plan information over the phone, through the mail, or over the Internet unless you have a trusted relationship with the requestor and you initiated the contact.