Your writing like checksums aren’t existing. They exist!

I’ve bought some 15 year old floppies recently. They work. Had just to learn, that formatting them is required. In handling they are like SD-Cards.

Which is far better than the CDs, DVDs, Bluerays or records (you now…this big black discs with a needle).

And you don’t have to worry about network attackers. And we checksum everything from the network. For good reasons.