How a Few Movie Ratings Can Break Your Netflix Privacy
Scientists showed that just a tiny bit of info can undo online anonymity.
Even when names are removed, a few movie likes or dislikes can point back to a person.
The team looked at the old Netflix contest data and found that someone who knows only a couple of ratings, or when they watched a film, can end up identifying the right record.
It gets worse — public pages like movie sites, or comments people leave, make it easier to match things up.
That means private habits, and maybe political or other sensitive choices, could be seen by strangers.
The idea is simple but worrying: small clues add up fast, and messy data cleaning dont stop it.
This shows how much care needed when sharing or releasing user data, and reminds us to think twice before posting what movies we love, because those little details can tell more than we expect.
Read article comprehensive review in Paperium.net:
How To Break Anonymity of the Netflix Prize Dataset
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