The Australian Cyber Security Centre’s (ACSC) 2016 Threat Report has revealed that Australian businesses and government have been subject to more than 15,000 significant incidents that they know of. Read the report here. They were the first to admit that given reporting is optional they cannot really determine the full impact.
Due to the current reporting regime, the ACSC has had to rely on data from callouts to CERT Australia (the national first responder to cyber incidents) to assess the extent of the problem in the private sector. CERT Australia responded to 14,804 incidents from the private sector from June 2015 to June 2016. Of those callouts, 418 involved systems of national interest and critical infrastructure. The banking, finance, energy and communications sectors were the most heavily targeted.
While the Government has introduced a bill to mandate serious data breach notification that is set to be passed in the near future (find out more about the bill here), until then, we will continue to go mostly unaware of damaging malicious cyber activity launched against Australian organisations because the private sector largely refuses report these incidents.