Check what version of bootloader is in your device but if you have v2.0.0 than your device is not safe from this exploit.
Read more information about that:
https://threadreaderapp.com/thread/1377362927729082368.html
Yeah, I've read about that attack vector, but it seems like any hardware wallet could be vulnerable to the same attack. Currently I'm using a Trezor and we all know it's also vulnerable to a similar physical attack. As you also mentioned in your post the updated bootloaders mitigate the possibility and I imagine (like a Trezor) a Bip39 passphrase would also mitigate this issue. Not to mention, if I was to use the Mk3 for coldish storage, they'll have to break into my gun safe before they can break into my hardware wallet.
I am interested to learn more about it and we may get more attention from mister Busy Nvk.
I wish I could, but I don't have an Mk3, this is my first ColdCard. I don't even own any OpenDimes, and that seems like a tragedy all on it's own.
I'm not sure. Digital media is a new technology, obviously. It may be archival but for how long? We won't know until we know. Maybe when the first Egyptians put ink to paper there was a "Dire Wolf" poopooing the idea and saying stupid shit like "that's never going to last, just chisel that shit in stone like a man."