In light of this week's LexisNexis Data Breach report, it's worthwhile to explore the true value and usefulness of this kind of data that might be stolen from you. Sensitive, personal data (PII, or "Personally Identifiable Data") is usually protected, but no protection is guaranteed if outside your complete control in any way – most people should assume their most-used data reflecting their personal identity (like SSNs, tel #s, DOB) is already public , if not already being used illegimately. Where you drive, what you buy, who you meet with, your outwardly-visible or audible physical characteristics – this information is already public in many ways, as well as captured through commercial or government systems to some degree. This is particularly true the older you are, or the more active you are using this information on the Internet (regardless of standard firewall, encryption, VPN, password or other security and privacy protections leveraged). However, a...