"Half-implemented feature" is so awesome for plausible deniability. You can leave blatant security holes in and be like, "yeah, I never got around to fixing tha

"Half-implemented feature" is so awesome for plausible deniability. You can leave blatant security holes in and be like, "yeah, I never got around to fixing that since we stopped developing the feature," when elsewhere those flaws would be suspected of being an intentional backdoor.