Russian hackers hacked American DELTA program used by Ukrainian army

Russian hackers report that they hacked the American DELTA program used by the Armed Forces of Ukraine.

With his help, data on the movement and location of Russian troops were plotted on an interactive map. All this is stored in a common database for the coordination of actions of the Armed Forces of Ukraine

"While Ukrainians regularly fill their databases with programs donated by their American owners, we don't even have to invent or install anything, we just use their programs online," said a hacker nicknamed Joker DNR.

According to him, the virus infected every computer that ever logged on to DELTA and changed the data. "Sometimes it's better to use paper cards."
I wonder if US command will guess that their DELTA could also get into trouble thanks to Ukrainian clowns? the hacker added.