what is its legal aspect?
Software and its source code was not copyrightable and therefore always public domain software
Source code
he situation varies worldwide, but in the United States before 1974, software and its source code was not copyrightable and therefore always public domain software.
what is the current version of symantec endpoint protection Version 12.1.2 what does it refers to? It  is a security software suite that consists of anti-malware, intrusion prevention and firewall features for server and desktop computers can you state any one feature of it? In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules is it itself vulnerable at any point? Yes,  source code for Symantec Endpoint Protection was stolen and published online when was it launched? The first release of Symantec Endpoint Protection was published in September 2007 who launched it? UNANSWERABLE you mentioned a particular code was stolen in this regard; what is meant by that code? It is any collection of code, with or without comments, written using a "human-readable" programming language, usually as plain text what is its purpose? It is used as input to the process that produces an executable program, it is also used as a method of communicating algorithms between people
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Source code [SEP] Legal aspects
The situation varies worldwide, but in the United States before 1974, software and its source code was not copyrightable and therefore always public domain software. In 1974, the US Commission on New Technological Uses of Copyrighted Works (CONTU) decided that "computer programs, to the extent that they embody an author's original creation, are proper subject matter of copyright". In 1983 in the United States court case "Apple v. Franklin" it was ruled that the same applied to object code; and that the Copyright Act gave computer programs the copyright status of literary works.