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Netflix Sued For Privacy Invasion
We've discussed the Netflix Prize numerous times as the contest ran, including the news two years ago that the anonymity of the dataset had been broken. Now reader azoblue sends in this excerpt from Wired: "An in-the-closet lesbian mother is suing Netflix for privacy invasion, alleging the movie rental company made it possible for her to be outed when it disclosed insufficiently anonymous information about nearly half-a-million customers as part of its $1 million contest to improve its recommendation system. ... The lead attorney on the new suit, Joseph Malley, recently reached a multimillion-dollar settlement with Facebook over its failed Beacon program, which drew fire in part for sharing users’ Blockbuster rentals with their friends. ... If a data set reveals a person's ZIP code, birthdate and gender, there's an 87 percent chance that the person can be uniquely identified." The suit turns on the question of whether Netflix should have known that their dataset's anonymity could be broken, two years before researchers demonstrated that.
How large an area is a zip code in the states?
Depends on how many households and businesses there are in the area. In a rural setting a zip code may cover an entire city or county. In a heavily urbanized area it may only cover a single building or city block.
The five digit zip code doesn't tell the whole story though. There's actually the nine digit zip code plus a two digit delivery point code. Every single address in the United States will have a unique nine digit zip code + delivery code. It doesn't mean much to the layman but the USPS can actually represent every single address in the United States with an 11 digit number.
I want peace on earth and goodwill toward man.
We are the United States Government! We don't do that sort of thing.
I just signed up for an account. It asked for your birthday on the page with your address. However, it _was not_ mandatory.
I conveniently skipped the 'birthdate', 'gender', and 'your opinion of these genre' sections.
In order to protect herself from being potentially exposed, she decided to join a high-profile national lawsuit, charging that they had created a potential for people to find out her sexual preferences. How many days do you think it'll be before her picture is all over the web, sitting right next to the headline "formerly closeted lesbian pulled out of closet by attaching her name and face to a privacy lawsuit"?
She filed as a Jane Doe to protect her privacy.
I'm a consultant - I convert gibberish into cash-flow.
There is a difference between US zip code system and Canadian one.
In the US, there is zip5 + zip4 (total 9 digits). If you use both, you are talking about 2-3 houses on a street. This is equivalent to Canadian 3+3 system. But a five digit US zip code may mean anything from one business building to very large number depending on the density.