I really loved the audio and visual design of the game, it definitely gave an unsettling low-poly retro feel, and I enjoyed the cynical comedy of the notes and dialogue as you piece together the story. I did feel the pressure of having eyes on me while reading through documents, so you achieved an anxious feel nicely :D
I think maybe if you choose to continue to update this game what would be cool would be adding additional gameplay features to the data destruction process, so it feels more like you're an IT guy going through a whole deletion process.