Your email is leaking - How much data you give away without ever realising. | The Crow
When you open an email, you’ll see what the sender wanted you to see. An amusing picture of a cat, perhaps. There will probably be a written message, and maybe some attached files. That’s all very nice, but most of what is sent over the email network was never meant to be seen by human eyes. That’s not to say that it’s hidden, it’s just not prominently on display because, well, to most people it’s irrelevant and confusing. From data unwittingly given away over the email network, I can infer who works from home, who is in charge, who makes decisions, and who gets copied in or consulted.