WPP still working to restore services after 'Petya' ransomware attack

Advertising giant WPP said on Wednesday that a number of its companies - not all - were affected by the 'Petya' ransomware attack that has hit organisations around the world.

The group said its operations have not been uniformly affected and issues are being addressed on a company-by-company basis. It added that many of its businesses are experiencing no or minimal disruption.

"We are working with our IT partners and law enforcement agencies to take all appropriate precautionary measures, restore services where they have been disrupted, and keep the impact on clients, partners and our people to a minimum. Having taken steps to contain the attack, the priority now is to return to normal operations as soon as possible while protecting our systems."

The 'Petya' ransomware swept its way across the globe on Tuesday, spreading through the likes of food manufacturer Mondelez, shipping giant Maersk, US law firm DLA Piper LLP, Russian steel and oil firms Evraz and Rosneft and French construction group Saint-Gobain.

At 1130 BST, WPP shares were up 0.4% to 1,648p.