A US judge has allowed nine ex-employees of Sony to continue in their attempts to bring legal action against the corporation, following a cyber hack that saw hundred of employees have their personal information publicly leaked.

Sony Pictures Entertainment had attempted to have the legal action dismissed, but the case will now continue after this latest ruling.

The claimants are attempting to sue Sony for not bolstering their cyber security after previous breaches had occurred. They claim that they have suffered economic harm as a result of Sony's negligence.

The sensitive information was leaked in 2014, when a group referring to themselves as the Guardians of Peace hacked their way into the studio's computers.

It was believed that the group carried out this 'attack' in revenge, following Sony's release of The Interview, a comedy depicting the assassination of North Korean leader, Kim Jong-un.

The claimants argue that Sony Pictures Entertainment violated a Californian confidentiality law by neglecting to strengthen security measures needed to stop the theft of their employees' sensitive information.

Refraining from ruling on the merits of the action itself, US District Judge Gary Klausner said Sony had created a "special relationship" with it's employees by requiring them to provide personal information to be eligible for salaries and benefits.

Commenting on the latest decision, lawyer Michael Sobol who is representing the claimants said, "We are pleased that the court has properly recognised the harm caused to Sony's employees."

The case continues.