Nokia investigates breach after hacker claims to steal source code. Nokia is investigating whether a third-party vendor was breached after a hacker claimed to be selling the company’s stolen source code. “Nokia is aware of reports that an unauthorized actor has alleged to have gained access to certain third-party contractor data and possibly data of Nokia,” the company told BleepingComputer. “Nokia takes this allegation seriously and we are investigating. To date, our investigation has found no evidence that any of our systems or data being impacted. We continue to closely monitor the situation.”.