A major technical failure in IT systems related to Microsoft’s online services hit the largest companies worldwide today. It also affected the operation of Ukrainian banks, mobile operators, and the delivery company. Contents What is happening around the worldReason for the massive failureHow the outage affected UkraineHow to solve the problem right nowWhat is happening around the world The global outage is the reason for all canceled flights of major US airlines – Delta, United, and American Airlines – due to communication problems. Frontier Airlines also suspended flights, explaining it was …