DWF has clinched a victory for supermarket giant Morrisons in a U.K. Supreme Court appeal relating to a class action brought by over 9,000 of the retailer's employees.

On Monday, judges ruled that the supermarket giant was not "vicarious liable" for the actions of an internal auditor who was alleged to have leaked the payroll data of around 126,000 employees as part of an "irrational grudge" against the retailer. 

The decision was a reversal of the judgement by the Court of Appeal which ruled that Morrisons was liable for the auditor's actions.