But the connection only make "easier" to connect to much larger pins, a determined attacker would be able to connect to the SPI bus even on the teeny-tiny TPM c

But the connection only make "easier" to connect to much larger pins, a determined attacker would be able to connect to the SPI bus even on the teeny-tiny TPM cheap directly, it's only a matter of having some more sophisticated hardware, risking doing a chip-off, etc. Only as an example (and not actually usable in this case unless a chip-off is done), there is what I call a cross-breed between an octopus and a acupuncturist: https://blog.acelaboratory.com/pc-3000-flash-spider-board-adapter-how-to-use-it.html https://blog.acelaboratory.com/pc-3000-flash-spider-board-ad...