Good read: Reflections of trusting trust https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thompson.pdf https://www.ece.cmu.edu/~ganger/712.fall02/papers/p

Good read: Reflections of trusting trust https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thompson.pdf https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thomp... That said, this requires you to be clever and I don't think anybody can be forced to be clever with a court order, or at least what you describe offers plausible deniability