Groupon Exposes Customer Emails In Google Results…Again

Ingrid Lunden reports:

while back we wrote about a flaw in Groupon’s email link encryption, which revealed the emails of some Groupon users when “addx” was added into a Google search of Groupon’s site. We’ve been alerted that is still happening, with about 170 emails coming up when we searched (last time around it was less than 80).

When this last happened, Groupon director of engineering Shinji Kuwayama told us that the emails were made public because some subscribers had “pasted their deals into publicly-crawlable pages around the Web,” but also that it was working on a solution to exclude those results. So why these are appearing now is unclear. We’re contacting Groupon to see if there is an explanation.

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