Copyright infringement and plagiarism can overlap but are not the same.
Plagiarism:
- The act or practice of taking someone else's work or idea, and passing it off as one's own.
- Attribution is required to avoid plagiarism.
- An ethical violation.
Copyright Infringement
- When a copyrighted work is reproduced, distributed, performed, publicly displayed, or made into a derivative work without the legal permission of the copyright owner.
- Permission is required to avoid plagiarism.
- A legal violation.
In some cases, use of a work requires both attribution and permission, and in other cases, use requires only one or the other.