Laser pulse/injection attacks, Xray inspection, Test-based(like JTAG scan chain) attacks, Microprobing attacks... are these invasive or non-invasive?

Just curiosity. I don't know how to categorize.

My professor put laser pulse as non-invasive, while another time put laser injection as invasive because require depackaging. Test-based are put as non-invasive, but how can they be non-invasive if I have to literally attach to the pin of JTAG? About microprobing, he put them to invasive.... but why microprobing is invasive and test-based jtag non-invasive?

  • 2
    It all comes down to the definitions of the terms, the scope, and how the tests are carried out.
    – schroeder
    Commented Jul 10 at 11:49
  • 1
    If by "microprobing" you mean drilling the package and attach to the innards, it's obviously invasive. While attaching to the JTAG, if it is exposed, could be construed as non-invasive; basically you use "non-invasive" as a synonym of "leaving no traces".
    – LSerni
    Commented Jul 10 at 22:49


You must log in to answer this question.

Browse other questions tagged .