ISM.

The Australian Signals Directorate (ASD) produces the Australian Government Information Security Manual (ISM). The manual is the standard which governs the security of Government ICT systems. The manual comprises three documents targeting different levels which are: Executive Companion, Principles and Controls.

Australia continues to be the target of persistent and sophisticated cyber exploitation activity by malicious actors. The most prevalent threat to Australian networks is cyber exploitation; that is, activity by malicious actors to covertly collect information from ICT systems. Australia is also threatened by the possibility of cyber attack—offensive activity designed to deny, degrade, disrupt or destroy information or ICT systems.