A spambot publicly dumped 711 million email addresses and a number of passwords, according to a blog post by security researcher Troy Hunt.
Mr. Hunt hypothesized the number of real people whose contact information was compromised is "somewhat less" than 711 million because of fake, malformed and repeated email addresses included in the dataset.
Additionally, the 1.2 million leaked passwords were seemingly aggregated from previous data breaches, including a May 2016 incident in which cyberattackers stole 164 million passwords from LinkedIn, according to The Guardian.
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