Security experts investigating the hack against Sony Pictures claim the attack could have been carried out by disgruntled former employees of the firm and not North Korea.
New information has emerged from secret web forums which point to former employees with a grudge and could explain how hackers knew how to navigate Sony's systems.
The FBI are still saying North Korea is to blame.
Our Los Angeles correspondent Verity Geere reports.
In: US cybersecurity experts
Out: SOC
Dur: 42 seconds
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