When you can't legally say your private server is secure, it's…
With the amount of time Jeb has to read/see anything potentially there, we can gather it's either a picture, or a short enough phrase that it can be read it whole, or it's independently big enough to read at a glance.
"ARREST WARRANT" would do that to you.
I'm just using that anon's pictured warrant as reference.
Though if you're alluding Jeb is clean…