Doing a bit of research online, my info is slightly out of date. They used floppy disks from 1968 to 2019. In 2019, they migrated from the old 8 inch floppy to "highly secure solid-state storage". They don't specify what type of solid state storage they actually use now though.

Source: https://www.nytimes.com/2019/10/24/us/nuclear-weapons-floppy-disks.html

[–] Daqu@feddit.de 16 points 11 months ago (1 children)

3.5" is much more solid than 8" floppies.

[–] Usernamealreadyinuse@lemmy.world 4 points 11 months ago

Fair point

[–] constantokra@lemmy.one 11 points 11 months ago (1 children)

I'd guess it's one of these.

[–] Confused_Emus@lemmy.world 5 points 11 months ago

The R in smart looked like an H at first. Was wondering if they made these in Maine.

[–] mlg@lemmy.world 10 points 11 months ago (1 children)

"Highly secure solid-state storage"

Probably used the same encryption scheme on an SD card adapter that plugs directly into the floppy drive lol.

[–] gizmonicus@sh.itjust.works 4 points 11 months ago

Like one of those old cassette tapes with a headphone cable when MP3 players first came out and cars didn't have adapters? Lol

[–] Usernamealreadyinuse@lemmy.world 2 points 11 months ago

Thanks this makes me feel (a bit) more secure...