Most critics find The Great Hack an unsettling, accessible account of Cambridge Analytica and the political uses of personal data. Praise clusters around its explanations of data harvesting, its international scope and the graphics that make digital surveillance easier to understand. Several reviews find the documentary gripping, with David Carroll’s attempt to recover his own data giving the wider scandal a concrete human focus. Brittany Kaiser also draws interest, though responses to her role differ sharply.
The spread is wide: reservations concern both the storytelling and how convincingly the film establishes political influence. Some otherwise positive reviews find repetition, a fragmented narrative or insufficient scrutiny of whether voters actually change their minds. Slant Magazine argues that the focus on Kaiser weakens the explanation of Cambridge Analytica’s methods. Variety admires the energetic account of the scandal but objects to the simplified explanation of Trump’s victory and the film’s faith in regulation.
