The Screen Crab by Hak5 is a passive, inline HDMI screen grabber. You plug it between a computer and its monitor (or a console and TV, or any HDMI source and display), and it silently captures screenshots or video of everything on that screen. It's physically inconspicuous — it looks like a small inline adapter or dongle — and it can store captures locally to MicroSD or exfiltrate them over WiFi via Cloud C2.