Day 04 – Data and Metadata
“Metadata Can Expose Person’s Identity Even Without Name” – WSJ
“Metadata Can Expose Person’s Identity Even Without Name”
New Analytic Formula Identifies People Without Names, Account Numbers –WSJ Jan.29,2015
http://www.wsj.com/articles/metadata-can-expose-persons-identity-even-when-name-isnt-1422558349
According to this article “Your shopping habits can expose who you are even when you are just one of a million nameless customers in a database of anonymous credit-card records, according to a new study that shows how so-called metadata can be used to circumvent privacy protections in commercial and government databases” MIT explains that by using metadata and a new analytic formula that formulates patterns based on the data collected on the millions of shoppers…with the formula each transaction was time-stamped with the day of purchase and linked to a shop. Even with so little to go on, they could readily identify a person’s unique purchasing pattern. Once the person’s shopping habit where identified they where able to match their activity levels with that of their public online accounts such as Facebook, Twitter, & Linkedin that actually contained time and location of their location “check-in” apps.
“We think of metadata as being not as important as content, but it turns out to be remarkably revelatory,” said cybersecurity analyst Susan Landau at Worcester Polytechnic Institute in Massachusetts, who wasn’t involved in the project. “Little bits of data combined with the data we shed in other places really create portraits.”
introduced by Jimena Vazquez
Day 04 – Data and Metadata – video link
NSA Collecting Verizon Phone Records – Today (http://www.today.com/video/today/52117612#52117612)
Online discussion questions – Day 4 (Jan 21) – Data and Metadata
What would be the examples of metadata around us? (other than the ones we discussed in class)
In-class exercise – Jan 21 – Data Dictionary (with solution)
Day 04 – Data and Metadata – Class slides
Reading Assignment for Day 4 (Jan 21)
What the NSA Wants to Know About Your Phone Calls – The New Yorker (http://www.newyorker.com/tech/elements/what-the-n-s-a-wants-to-know-about-your-phone-calls)