A better comparison would be a postcard. And in fact, many years ago I was advised just that: treat email as being as private as a postcard. Most likely, nobody besides the intended recipient will bother to read it, but a number of people could read it.
For as much as folks half my age are purported to understand technology, I think we may have received better general instruction in using the internet in years gone by... or maybe we were just more wary of it, knowing that we didn't understand all of the implications.
For as much as folks half my age are purported to understand technology, I think we may have received better general instruction in using the internet in years gone by... or maybe we were just more wary of it, knowing that we didn't understand all of the implications.