Twitter says a spear phishing attack led to the huge bitcoin scam

Illustration by Grayson Blackmon / The Verge

Twitter provided an update about the unprecedented July 15th attack that allowed hackers to tweet from some of the most high-profile accounts on the service, in a blog post and a series of tweets published Thursday evening. Twitter now says that a few employees were targeted in a phone spear phishing attack. While Twitter doesn’t quite say, that presumably means hackers called up Twitter employees while posing as colleagues or members of Twitter’s own security team, and got them to reveal the credentials they use to access internal systems.

Twitter had previously said its own tools were compromised in the attack, but up until this point, the company hadn’t specified how that had happened. “This attack relied on a significant and...

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