[JoeFromSidney]

IBM and its German subsidiary custom-designed complex solutions, one by one, anticipating the Reich's needs. They did not merely sell the machines and walk away. Instead, IBM leased these machines for high fees and became the sole source of the billions of punch cards Hitler needed.

True but misleading. IBM almost always leased, almost never sold, its tabulators. It also was the only possible source of punch cards. This wasn't something special for Hitler, it was IBM's general practice.

[Calpernia]

I don’t understand what is or was misleading.

IBM stated in the past that their office(s) were taken over by the Hitler regime. That statement shows they maintained control throughout the war.