I just read https://space.stackexchange.com/questions/37980/does-the-voyager-team-use-a-wrapper-fortran77-to-python-to-transmit-current and it struck me: how does NASA prevent satellites like this to be hi-jacked? Any security protocol designed in the 70s should be broken by now, shouldn't they? Furthermore, the CPU and storage capacity of a 70s satellite should be too limited to apply some modern algorithm?

Or are they relying on obscurity: no one else has the means to build the large enough satellite dishes required to communicate with crafts this far away?

Edit: I don't need to edit it, this is very different from the linked question. You can't prove non-existence so if you claim that they are similar, you have the burden of proof.

  • How does one transmit to Voyager?
    – schroeder
    Aug 11, 2019 at 12:08
  • 1
    Possible duplicate of What would one need to do in order to hijack a satellite? (except even harder to aim a dish at Voyager than something that's in a far closer orbit).
    – gowenfawr
    Aug 11, 2019 at 14:35
  • 2
    I don't think it's a fair duplicate. The targets are wildly different both in era and in distance from earth. It may certainly be off topic for other reasons tho...
    – vidarlo
    Aug 11, 2019 at 15:31
  • @gowenfawr No it is not. The linked question relates to satellites with reasonably modern electronics which probably can handle modern cryptos (any $50 headphone can do it so it is reasonable to assume even a 15 year old satellite can even though they didn't use state of the art components when it was built).
    – d-b
    Aug 12, 2019 at 12:08


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