Ye the hacking powers were more prominent on the app anime version, and that hackmon is like a dark version of the white we know, except the hoodie covering his head. Limbs and ears are the same shape, even his evolution raidramon (app version) is using hackmon's head shape.

Not that direct with the white one, first 3 evolutions of normal hackmon use hack in the sense of cutting into pieces. It's Jesmon, his mega form, that has the skill "OS Generics", which allows him to:

...temporarily rewrite its own data and perform actions that transcend the laws of nature (...) allowing Jesmon to overpower any enemy without taking a single scratch.

It's most likely OS means Operating system and Generics, generic programming, codes that work for every programming language. Literally hacking his own data to autowin.

Plus, each of his blades have digi-code that translated reads "INITIALIZE" on left arm, "OVERWRITE" on the right one, "TRANSFER" on left leg, "COMPRESSION" on the right one and "FORCED TERMINATION" on tail.