Instagram (META) denies breach after users receive suspicious password reset emails. Malwarebytes claims 17.5 million accounts’ data for sale on hacker forum. Confusion persists over origin of leaked data. Instagram advises caution with unsolicited emails and recommends changing passwords directly through official channels. META stock closed at $631.09, down 1.69%, but is trading higher after hours at $642.74 on NasdaqGS.

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