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Arvind Narayanan
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Kill me now:

http://online.wsj.com/article/SB10001424127887324784404578143144132736214.html

Facebook Inc., for example, offers a service that shows ads to groups of people based on email address, but only if advertisers already have that address. Facebook says that it doesn't give people's email addresses to the advertiser.

...

How does anonymization work? A website uses a formula to turn its users' email addresses into jumbled strings of numbers and letters. An advertiser does the same with its customer email lists. Both then send their jumbled lists to a third company that looks for matches. When two match, the website can show an ad targeted to a specific person, but no real email addresses changed hands.

It's like two decades of crypto never happened.

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Bad form, Google

From an email from a Google recruiter:

I know quite a few of my colleagues have reached out over the past months, but none with any luck.

Then perhaps you should take a hint?

(Google is absolutely the only company that sends me repeated unsolicited recruiting emails.)

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http://33bits.org/2013/05/27/reidentification-as-basic-science/

What really drives reidentification researchers? Do we publish these demonstrations to alert individuals to privacy risks? To shame companies? For personal glory? If our goal is to improve privacy, are we doing it in the best way possible?

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