That includes: coffee shops, ISPs, employers, everyone who can hack their routers, anyone who can spoof DNS, etc. That might as well be "everyone".
STOP IT. Though shall use HTTPS.
Fair enough. I agree that HTTPS is valuable here. I was just being overly pedantic, my bad.
the moment we are talking about monitoring user's software base, we are practically already talking attackers at the skill level of nation states, so yeah "everyone" in the subset of plausible attackers.