Hello!
Why do the airlines continue to be affected by these system shutdowns? It wreaks havoc on the operation as well as the travel plans of the passengers. These problems have hurt several major airlines domestically and internationally while happening on a more frequent basis. You can also read more thoughts on my article posted last year called “Hacking Aviation”.
https://www.cnn.com/2017/01/22/travel/united-grounds-domestic-flights-because-of-it-issue/index.html