Copyright infringement
Copyright infringement happens when someone copies or uses something that they do not have permission to use. For example, if you copy a video or song from someone else's website or TV show without their permission, that's copyright infringement. It's like stealing something that belongs to someone else. It's not allowed and people can get in trouble for doing it.
Related topics others have asked about:
Abandonware,
Cable television piracy,
Center for Copyright Information,
Computer Associates Int. Inc. v. Altai Inc.,
Copy protection,
Copyfraud,
Copyleft,
Copyright, Designs and Patents Act 1988,
Copyright Remedy Clarification Act,
Copyright aspects of downloading and streaming,
Copyrighted content on file sharing networks,
Criminal remedies for copyright infringement