The filters are actually open source program code written in LISP, one of the first programming languages ever created.

过滤器实际上是使用LISP编写的一种开源程序代码，LISP是最先创建的编程语言之一。

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On one system, 74 user accounts had privileges enabling them to change program source code without supervisory oversight, the report stated.

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But they are refusing to allow independent analysis of the program's source code, on the grounds of commercial confidentiality.

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If the borrowed open-source code is integral to a larger program, that program becomes a "derivative work, " subject to various claims--e.g.

FORBES: Magazine Article