Typewriters can become insecure if you leave them alone -- someone could modify it to send all keypresses via wireless transmission, and probably even power fro

Typewriters can become insecure if you leave them alone -- someone could modify it to send all keypresses via wireless transmission, and probably even power from those presses. A typewriter is no more or less secure than a keyboard. A computer is far more than a typewriter, you need to compare the security of the documents and the entire system. A non-networked computer in a locked vault with encrypted files and a password is more secure from incorrect access than a pile of documents in a locked vault, although once incorrect access is gained, the scale of the damage can be far higher with a computer (it's easy to read one or two documents, but to try to smuggle 5000 documents out physically is hard. To sumggle them out from a computer is far easier. As the common poster in the 90s went - To Err is Human, to Really Foul Things Up requires a Computer.