Thanks, I hadn’t considered wax paper before.

I think a few things make it hard in practice:

First, the fit is tight by design. While you could stretch one of the seals to slide paper between two keys, it would leave marks: whitish stress lines where it’s been pulled. That’s tamper evidence.

Also, both keys may be stamped (for 24-word seed phrases). So any impression would be a superposition of two letter sets, which would likely make it unreadable.

I think if someone has that much time and patience, they’d probably just break the seal and move the funds. It’s faster.

The seals aren’t meant to stop every attack.

They’re meant to make access evident, for threats like curious family, resale, or quick snooping.

For those, it works.