3 – Emails outside your business – the big, bad internet
First, your ISP may be able to read it. Or, your government has requested a ‘tap’, so they can see what you’re up to. Then your email is bounced around, usually with no encryption, through a series of ISP (Internet Service Provider) computers. If one of these special computers, or “routers”, is hacked, then hackers can view all the traffic passing through it, including your email. Anyone of the tens of routers your email will pass through could be compromised, and someone may be interested in what you’re saying.