Microsoft Maul function

IT outages are reported across the world, affecting airlines, media, and banks
Many flights have been grounded, with queues and delays at airports
In the UK, railway companies report delays and say they’re experiencing “widespread IT issues”
Some GP surgeries in England are having issues with booking appointments
Sky News has not been able to broadcast live, its executive chairman says
The cause is not known – but Microsoft says it’s taking mitigation action