Yes, as long as the information is printed online, there will be memories online.

So there is the risk and possibility of information leakage. If it is suspected to be confidential,

Then don't print it, don't spread it through the internet, just circulate it in a printed paper version without the internet, and it is forbidden to take pictures and keep it.

Only in this way can we keep a secret.

Maybe, if the file hasn't left the field of vision, just copy and paste it.