[salawat]

Oh,no worries. I just think that SIM and handset manufacturer's are going the route of integrating NFC into handsets to support SIM stored payment credentials. I know for a fact it's a hot item in the FinTech industry.

Odds are, you could get a generic reader to get a chirp out of an RFID even without the PIN/PUK card that wouldn't be present in any other package.

IF I were an evil surveillance state taking an interest in mail borne SIM cards in ANY state (I mean think about this, if you could automate it, figuring out the networks of people who often send SIM's to each other in and of itself is a useful data point) I'd exploit using a small machine that can be innocuously placed on the sorting line to get that chirp.

Biggest problem I imagine would be possible tipping off through damage caused to EMF/RF sensitive packages, but I've not really looked up the math or engineering involved enough to make an educated guess.

Like I said. Interesting problem, and I seriously hope you're not right. That's levels of cyberpunk dystopia that just shouldn't be possible in anything remotely resembling a healthy society.