A/76/136
to civilian objects, or a combination thereof, which would be excessive in relation to
the concrete and direct military advantage anticipated.
Australia, and other States parties to Additional Protocol I to the Geneva
Conventions of 1949 are required under Article 36 to determine whether the
employment of new weapons, or means or method of warfare, would, in some or all
circumstances be prohibited by Additional Protocol I or any other rule of international
law applicable to that State. A cyber capability could, in certain circumstances,
constitute a ‘weapon, or a means or method of warfare’ within the meaning of Article
36 and require a review in accordance with Article 36 obligations.
In armed conflict, Australian military capabilities are employed within a wellestablished system of command and control, within applicable legal frameworks, and
subject to orders, directives and procedures. This includes approved targeting
procedures. Cyber activities are no different. Where cyber actions or activities amount
to an attack under IHL, as for conventional activities, Australian targeting procedures
comply with the requirements of IHL. Trained legal officers are available to support
Commanders with advice to ensure that Australia satisfies its obligations under
international law and operates in accordance with its domestic legal requirements.
International human rights law (IHRL) also applies to State conduct in
cyberspace. Under IHRL, States have obligations to protect relevant human rights of
individuals under their jurisdiction, including the right to privacy, where those rights
are exercised or realised through or in cyberspace. Subject to lawful derogations and
limitations, States must ensure without distinction individuals’ rights to privacy,
freedom of expression and freedom of association online.
3.
General principles of international law, including the law on State responsibility
The customary international law on State responsibility, much of which is
reflected in the International Law Commission’s Articles on the Responsibility of
States for Internationally Wrongful Acts (ARSIWA), applies to State behaviour in
cyberspace. Under the law on State responsibility, there will be an internationally
wrongful act of a State when its conduct in cyberspace – whether by act or omission –
is attributable to it and constitutes a breach of one of its international obligations.
To the extent that a State enjoys the right to exercise sovereignty over objects
and activities within its territory, it necessarily shoulders corresponding
responsibilities to ensure those objects and activities are not used to harm other States.
In this context, we note it may not be reasonable to expect (or even possible for) a
State to prevent all malicious use of ICT infrastructure located within its territory.
However, in Australia’s view, if a State is aware of an internationally wrongful act
originating from or routed through its territory, and it has the ability to put an end to
the harmful activity, that State should take reasonable steps to do so consistent with
international law.
States are entitled, in their sole discretion, and based on their own judgement,
to attribute unlawful cyber activities to another State. States should act reasonably
when drawing conclusions based on the facts before them.
A cyber activity will be attributable to a State under international law where, for
example, the activity was conducted by an organ of the State; by persons or entities
exercising elements of governmental authority; or by non-State actors operating under
the direction or control of the State.
Australia recognises the need to distinguish between different attribution
assessments, including factual attribution (which includes an assessment of technical
and other contextual information) and legal attribution (that there has been a breach
21-09670
7/142