Cornell University created an open source tool called Spider which can search your computer hard drives, removable media, and network shares for files that may contain confidential data like Social Security Numbers and Credit Card Numbers. Click HERE for More detail.
TECHNews: Using the Hovering Technique to Identify Phishing Attacks
Phishing emails often disguise themselves as originating from known sources such as IT, your bank, the IRS as well as countless others. Follow this link to learn how to recognize and avoid phishing.