What a screenshot can reveal about you
Say a support agent — call him Marco — grabs a quick screenshot to show a customer where to click, and posts it in a public help thread. Helpful. But the shot also caught a browser tab with an internal URL, a name in the taskbar, and a notification preview in the corner. None of it was the point of the screenshot — all of it went public.
Two kinds of oversharing
Screenshots leak in two ways. The obvious one is what's in frame — the edges, tabs, notifications and reflections you stopped noticing. The subtler one is metadata: depending on how it was captured or edited, an image file can carry timestamps, device details, editing software, and other data you can't see in the picture.
For the first, the fix is a human one: crop tight and glance at the edges. For the second, you need to look inside the file.
Check and clean it
Drop the screenshot into scrub. It reads the image on your own device — nothing uploaded — and shows any metadata it's carrying, plus data appended to the end of the file. One click strips it all, losslessly, and re-checks to confirm the image is clean. A freshly-taken system screenshot is often already bare, and scrub will tell you that too — so you know, rather than guess.
The short version
A screenshot shares more than the box you drew around it — sometimes in the frame, sometimes in the file. Crop tight, then check it. Get scrub free and clean an image in seconds.