Almost certainly so. Decap the chip, pull the flash contents out to get the key, etc, flash a new backdoored chip, you&#x27;re done. Hobbyists have been decapping chips and pulling flash for a while, so this is certainly not beyond the abilities of the NSA&#x2F;CIA&#x2F;etc. You wouldn&#x27;t need the exact same make of chip, just one that presents itself as the same.