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Copy protection for computer software, especially for games, has been a long cat-and-mouse struggle between publishers and crackers.These were (and are) programmers who defeated copy protection on software as a hobby, add their alias to the title screen, and then distribute the "cracked" product to the network of warez BBSes or Internet sites that specialized in distributing unauthorized ...
Serial Copy Management System Records in the sub code data bits that expresses whether the media is copy allowed(00), copy once(10) or copy prohibited(11). Traitor Tracing Rather than directly preventing copying, embeds user information into files so if they are uploaded, the copyright holder could find out exactly who uploaded the file.
Princeton student J. Alex Halderman was threatened by SunnComm under this law for explaining how Mediamax CD-3 CD copy protection worked. Halderman explained that the copy protection could be defeated by holding down the shift key when inserting the CD into Windows (this prevented autorun, which installed the Mediamax protection software ...
PlayReady is a media file copy prevention technology from Microsoft that includes encryption, output prevention and ... and even more with DRM-free software, ...
DRM copy-prevention schemes can never be wholly secure since the logic needed to decrypt the content is present either in software or hardware and implicitly can be hacked. An attacker can extract this information, decrypt and copy the content, bypassing the DRM. [137]
This copy protection can be defeated simply by using a computer that is not running Microsoft Windows, not using an account with administrative privileges, or preventing the installer from running, and has long since been discontinued due to a public relations disaster caused by the software behaving identically to a rootkit. Key2Audio