Doesn't this mean people can track whether you've read an email by including som... | Hacker News

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dominicrodger on Dec 12, 2013 | parent | context | favorite | on: Images Now Showing

Doesn't this mean people can track whether you've read an email by including some kind of unique identifier in the image path? If not, how could this possibly work?

BryantD on Dec 12, 2013 [–]

People have been doing that for a while -- it's very common to put a 1 pixel by 1 pixel image in an email as a tracking bug.

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