Dropbox Sign (HelloSign) production environment breached

Teaser from the source

A threat actor got into the Dropbox Sign (formerly HelloSign) production environment through a compromised service account in an automated system-configuration tool. It accessed customer emails, usernames, phone numbers, hashed passwords, API keys, OAuth tokens and MFA data. Dropbox reset passwords, logged users out and coordinated rotation of all API keys and OAuth tokens. It found no access to documents or payment information.

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