Oh, oh!!! This is not good.
Earlier this week, former Florida governor Jeb Bush released online a cache of emails sent and received by his personal email address during his time in office. His attempt at transparency turned sour after it was realized that some emails contained personally identifiable information of Floridians, including social security numbers, names, and dates of birth.
Todd Feinman, CEO of data protection firm Identity Finder, ran an analysis of the data and determined that nearly 13,000 unique social security numbers were released. His software, which uses natural language processing to identify sensitive information through contextual clues, found that about 12,500 of those were contained in a spreadsheet embedded in a PowerPoint slide attached to an email dated October 2003.
http://fortune.com/2015/02/13/jeb-bush-social-security-numbers/