It's indeed trivial to write such a thing, and given that none seem to exist it doesn't seem like it's really a practical security issue IMHO. I think a permis

It's indeed trivial to write such a thing, and given that none seem to exist it doesn't seem like it's really a practical security issue IMHO. I think a permission system for the clipboard would be pretty awkward UX, and not really worth the effort for the (hypothetical) problem it's solving.