What was the case of the microcontroller detecting the counterfeit cable? I don't think I've ever heard of this.
It was not that uncommon if you bought a cheap USB to serial or USB to TTL dongle online.
APC devices are generally pretty good, except for this infuriating and dangerous “feature”.
It’s almost 2020, and vendors still have this ridiculous idea that they can lock you into their proprietary ecosystem by doing stuff like this.
That said, there's absolutely zero reason to keep maintaining this ancient and dangerous option.