That would be a derivative work, which requires a license from the rightsholder of the original work.
Infringement.
Infringement .
giarism. It involves using someone else's work, ideas, or words without proper citation or acknowledgment. Plagiarism is considered unethical and is unacceptable in academic and professional settings.
Use of protected material without permission or an exemption in the law is called infringement.
That actually depends upon what it is that you are using. If you use someone's car without permission, that is called stealing. If you use someone's movie without permission, that is called piracy. If you use someone's body without permission, that is called rape.
The illegal copying of books and CDs is called piracy. This involves making unauthorized duplicates of copyrighted material and distributing them without permission. Piracy is a violation of intellectual property rights and is punishable by law.
LimeWire is completely legal. However, the purpose many people use it for is not. Downloading copyrighted music, videos, or programs without the permission of the author is illegal. This is called "copyright infringement" or "piracy."
The "fair use" exception generally allows for a portionof a copyrighted work to be used without permission for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research (and more recently parody/satire)
Counterfeiting
you are doing something bad
Not without a license; there is no minimum quantity to be called infringement.
Certainly, it is called theft.
stalking
You can download a program called netstumbler. what this program does is alerts you to wifi near you wherever you are. When you hear the alert, open the window and check to see if the connection is unsecure. You should be aware that using someones open connection without their permission is a crime.