Note: This post now archived and as such no longer works
Would be interesting to use such an embedded image to acquire some statistics on lemmy users. We could answer questions like: What percentage of lemmy users use Linux?
You are viewing this from an unkown (mobile?) client 🤔
“You are viewing this from Firefox on Windows.”
I should worry that this info is exposed?
Probably not. Every time your web browser makes a request to a server, it always transmits some “user agent” describing itself. By default, it’ll be something that boils down to “Safari version X on macOS version Y” or “Firefox version A on Windows version B” or something similar. You can often change your user agent (on desktop browsers at least) of you care.
What can someone do with this specific info? Well, not a huge amount. It can be used as a sort of a fingerprint - the more unique a browser’s user agent, the more easy it is to target you as a demographic or individual. It could be used in phishing, to legitimize spam - think, “I know you use Firefox on Windows, you don’t want to know what else I know!” But honestly, for the vast majority of people (in my opinion) the reality is that letting the server know your user agent isn’t going to be doing much.
To be fair, user agent is one of many ways that remote services can track you and identify you.
I did not know until now that it is possible to embed external images within posts and replies. I thought the only option was to upload to your instance.
this is bothersome, but if you use a VPN then at least there’s that.
otherwise it’s feasible to track captured addresses based on which posts they read by posting an external image in the post or a reply.
if you are seeing images in this post, then your client address is visible to any external image hosts.
Unknown mobile client. Yeah, I’m pretty mysterious like that.
