This is not about technologies (after all, an authoritarian government will use many existing technologies, from the car to the computer), but about powers granted to a government, that could be used differently by the next party/majority in power.
The answer to that is to not grant government too much power in the first place.
Of course, this is often a contentious point for leftists, since they do want to grant government a lot of power in the first place; they're just concerned that the exact same powers will then be used by a different political side in a way that bothers a different category of people.