Copy protection scheme on HDMI and DisplayPort that prevents unauthorized recording of content.
Key points:
- HDCP 1.4: HD content protection
- HDCP 2.2: Required for 4K protected content (Netflix, Disney+, Blu-ray)
- HDCP 2.3: Latest version with minor security updates
- Every device in the signal chain must support the same HDCP version
- Common cause of black screens — if any device fails HDCP handshake, no image
- Switchers, extenders, and splitters must all be HDCP compliant