Closed source software

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Closed source is a term for software whose license does not allow for the release or distribution of the software's source code. Generally, it means only the binaries of a computer program are distributed and the license provides no access to the program's source code. The source code of such programs might be regarded as a trade secret of the company. Access to source code by third parties commonly requires the party to sign a non-disclosure agreement.

Closed source software

See also