Many female workers at Ravensbrück concentration were forced to produce army uniforms for the Nazis. They deliberately sabotaged them. An example of this is that they made the heels of socks too narrow or defective. This gave soldiers painful blisters on their feet. The OSS (WW2 version of CIA basically) actually produced pamphlets encouraging simple sabotage. These were meant to be dispersed to labor and management within target countries. To do things like “sew one pant leg shorter than another” and to put “metal shavings in oil/gas tanks” among many many other suggestions. Even telling factory managers to simply “lose” important documents.
When France was occupied by the Germans in 1940, Citroen was forced to produce vehicles for the Nazis. They chose to move the fill line on their oil dipsticks lower, causing the trucks to seize under stress from low oil.
In 1982 the CIA worked with Canadians to give Soviet spies intentionally flawed software for a natural gas pipeline. “The result was the most monumental non-nuclear explosion and fire ever seen from space.”