Security Legislation Amendment (Terrorism) Act 2002, No. 65 (2002) ("An Act to enhance the Commonwealth's ability to combat terrorism and treason, and for related purposes"), as amended, taking into account amendments up to Act No. 40 of 2003 ("An Act to enhance the Commonwealth's ability to combat terrorism and treason, and for related purposes") (full-text).
The Act specifically outlawed cyberterrorism:
|“|| The action or threat of action which seriously interferes with, seriously disrupts, or destroys, an electronic system including, but not limited to information, telecommunications and financial systems [...].
The action is done or the threat is made with the intention of: advancing a political, religious or ideological cause; and coercing, or influencing by intimidation, the government of the Commonwealth or a State, Territory or foreign country (or part of).