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Tumblr Data Breach (2013)

Tumblr

lowVERIS
Disclosed

November 24, 2013

4506 days ago

Records

Undisclosed

Confirmed

Root Cause

Human Error

Industry

Other

Description

Tumblr sent emails to members with their password in the subject line and body of the message. A mail merge error of some sort substituted users' passwords for their usernames in the messages.