As soon as you use something you did not make yourself, your project could theoretically be compromised. This ranges from drivers, compilers, OSs, hardware, to

As soon as you use something you did not make yourself, your project could theoretically be compromised. This ranges from drivers, compilers, OSs, hardware, to the text editor you wrote anything and everything with. In the real world, we can protect things with a reasonable expectation of security. We can't exactly have a CCTV camera watch an incredibly small count of bits tamper with every other one in countless server closets and data centers, but we can have CCTV cameras watch an unscrupulous public servant write some extra ballots and put them in a box to be sent to DC (or wherever else).