Why Privacy Is Hard to Do Right

A security and privacy expert explains how “anonymized” data can still be used to discover the original source and how Netflix messed up once by accident but is about to mess up a second time with full knowledge.

Dear Netflix executives: Don’t do this to your customers, and don’t do this to your shareholders. Cancel the Netflix Prize 2, while you still have the chance.

Imported from an old blog. Some links might be dead. Let me know if you find dead links.