What You're Actually Showing When You Share Your Screen on Client Calls
If you work from home, chances are you’ve shared your screen on a client call, a job interview, or a project update at some point this month. Most people give zero thought to what’s actually visible on that screen beyond the one document or slide they meant to show. That’s the problem.
Screen sharing doesn’t just show what you’re pointing at. It shows everything in the frame, and often more than you realize until it’s too late to take it back.
The desktop itself
Full-screen sharing exposes your desktop background, your file names, and your folder structure. If you name files the way most people do (“Client_Invoice_Jane_Final2.pdf” or “Tax_Stuff_2023”), that’s now visible to whoever you’re presenting to. It’s not a huge risk on its own, but it’s information you didn’t mean to hand over, and there’s no good reason to.
What to do: Before any call where you might share your screen, take 30 seconds to move loose files into a folder, or at least glance at what’s sitting on your desktop. Some people keep a folder called “Desktop Stuff” that catches everything, purely so the desktop stays clean for calls.
Notifications
This is the one that catches people off guard most often. Email previews, text message forwarding apps, calendar reminders, and chat notifications from Slack or similar tools tend to pop up in the corner of the screen regardless of what window you’re sharing. If a client email, a personal message, or a payment notification pops up mid-presentation, everyone on the call sees it, including the sender’s name and a preview of the content.
What to do: Turn on “Do Not Disturb” or “Focus Mode” before you start sharing, not after you notice a notification has already appeared. Most operating systems let you set this with one click or one keyboard shortcut. It’s worth learning where that setting lives on your specific computer so you’re not hunting for it while someone’s waiting on you.
Browser tabs and open windows
If you’re sharing your whole screen instead of a single window, every open tab is fair game the moment you switch windows or someone asks you to check something. That includes tabs for your bank, your email, other clients’ project boards, or anything else you had open before the call.
What to do: Share a specific window or application instead of your entire screen whenever the software allows it. Zoom, Google Meet, and Teams all support this. It limits what’s visible to exactly the thing you intend to show, and it’s a habit worth building even for low-stakes internal calls, because habits are what save you on the calls that actually matter.
Browser extensions and toolbars
Extensions for password managers, ad blockers, or productivity tools often add small icons or badges to your browser bar. Most are harmless to show, but some display information like unread counts, saved passwords, or account names in a hover tooltip. It’s a minor exposure, but worth knowing about if you’re sharing a browser window rather than a clean tab.
The “just in case” habit worth building
None of this requires new software or a security overhaul! It’s a two-minute pre-call routine:
- Close anything you don’t need open.
- Turn on Do Not Disturb.
- Share a specific window, not your full screen, when possible.
- Glance at your desktop for stray files.
If you do a lot of client-facing calls, it might be worth setting up a separate browser profile just for those calls, one with no saved logins, no personal bookmarks, and no extensions beyond the basics. Most browsers support multiple profiles for free, and switching between them takes a couple of clicks. It keeps your “client-facing” browsing environment separate from your everyday one, so there’s less to think about before each call.
If you’re screen sharing often enough that this feels like a hassle every time, a dedicated video conferencing tool with built-in screen-sharing controls (window-only sharing, automatic blur options, presenter mode) can save you the manual cleanup. But the habit matters more than the tool. Even the best software won’t stop a notification from popping up if Do Not Disturb isn’t on.
Screen sharing shows more than most people think, and a two-minute check beforehand costs you nothing!