High-bandwidth Digital Content Protection is a protection system used on certain digital connections, including HDMI arrangements. Protected playback may require compatible devices throughout the signal path to complete its checks. HDCP is separate from a subscription login, and an issue in the display connection can interrupt otherwise correctly delivered media in a supported playback workflow.
A practical example
A streaming device connected through an older receiver may encounter a protection-related display problem that does not occur when connected to a compatible television input. The internet connection and account can remain unchanged while the signal path causes the difference.
A common misunderstanding
Do not attempt to defeat protection mechanisms. Use supported equipment and connection arrangements, and distinguish an HDMI-chain issue from a media account or playlist problem before seeking the appropriate support.
Related terms
Stable technical definition. Editorial approach