Twilio has confirmed that, for 8 or so hours on July 19, a malicious version of their TaskRouter JS SDK was being served from their one of their AWS S3 buckets. “Due to a misconfiguration in the S3 bucket that was hosting the library, a bad actor was able to inject code that made the user’s browser load an extraneous URL that has been associated with the Magecart group of attacks,” the company shared.

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