Copyright Office

Technological Protection Measures (TPMs)

See related topic - Digital Rights Management (DRM).

Technological Protection Measures (TPM) are any technological devices or tools that prevents unauthorised or illegal access to, or copying or reproduction of, copyright materials. There are two categories of TPM - access control and copy control. Access control TPMs prevent unauthorised access to material while copy control TPMs prevent unauthorised copying. Access is restricted through use of passwords and/or encryption. The Copyright Act does not include regional coding on DVDs or computer programs in its definition of an access control TPM. TPMs are mostly used in material such as sound recordings, films and computer software, as well as electronic artistic and literary works (e-books).

Like Digital Rights Management (DRM), TPMs are controversial. Copyright owners support the use of TPMs as they prevent users from illegally copying their works and infringing their copyright. Users of copyright material believe that although TPMs prevent infringing uses of copyright material, they can also prevent legitimate uses of copyright material under certain provisions such as the Statutory Licences for educational purposes, Fair Dealing and Personal Use.

A well-known example of TPM is the Sony RootKit which was included on Sony audio CDs and design to prevent music on the CD being transferred to a computer and then burned to another CD. However, this TPM installed a Rootkit which left the user's computer vulnerable to attacks by malware or spyware. The users was usually unaware of that the Rootkit had been installed and therefore their machine was vulnerable. Legal action was taken against Sony and they recalled all the CDs that included the Rootkit. See Wikipedia article 2005 Sony BMG CD copy protection scandal.

Under the Copyright Act it is not permitted to use, manufacture, import, supply or communicate devices to circumvent access control TPMs and allow unauthorised access or copying. Legal action may be taken against anyone who deliberately or knowingly uses a device to circumvent, manufacture or supply such a device or provide a service circumventing TPMs. It is not permitted to circumvent a TPM to copy or access material under the Fair Dealing or Personal Use provisions. There are some limited exceptions under certain circumstances:

These exceptions permit the circumventing of a TPM but they do not cover the manufacture or supply of a device for circumventing a TPM. For example, while it is permitted that a TPM might be circumvented by an educational institution to provide access to material for educational purposes under the Statutory Licence, the exception would not cover the manufacture or a supply of a device by an educational institution to circumvent a TPM to provide access to material for educational purposes under the Statutory Licence.

For additional information about or for assistance with TPMs, contact the Copyright Office.

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