To make sure that your personal information (Social Security number, driver's license number, etc.) is unavailable to hackers, you must install and run a program called Identity Finder on your Mac. Identity Finder will scan your computer’s hard drive for sensitive personal data and report back to you with a number of options for handling the files. To install and run Identity Finder, please go to http://www.it.cornell.edu/services/idfinder/howto/mac/install.cfm for step-by-step information on how to secure your data. Be sure to follow all of the steps provided in the left-hand column of the webpage.