Maersk IT systems are down We can confirm that on Tuesday 27 June, A.P. Moller - Maersk was hit, as part of a global cyber-attack named Petya, affecting multiple sites and select business units. We are responding to the situation to contain and limit the impact and uphold operations. We continue to assess and manage the situation to minimize the impact on our customers and partners. We will update when we have more information.