Many Australians fear a terrorist attack like that in Nice, France, earlier this year.
Many Australians are frightened by the prospect of terrorism on home soil, but statistics show they don't have much to fear.
It’s all fun until someone gets hacked.
Prime Minister Malcolm Turnbull and senior ministers have been criticised over their use of WhatsApp, which can leave users vulnerable if their phones are hacked, attacked by malware, or simply stolen.
The guided missile destroyer USS Barry deploys to sea from Naval Station Norfolk ahead of Hurricane Sandy in 2012.
Politicians are still debating whether climate change is real, but military planners call it a serious threat. A retired rear admiral explains how climate change affects U.S. national security.
An intelligence review should include not just policy considerations, but open public debate.
The federal government's review of intelligence agencies is important not just for our understanding of their function, but also for a more open public debate about spying and security.
Australian Human Rights Commission president Gillian Triggs has warned against laws that violate freedom.
While the debate around Section 18C has raged, a host of other laws that impinge on freedom of speech have been quietly introduced.
Islamic State today is in increasingly dire straits on the ground in Iraq and Syria.
Islamic State's call to arms against Australian targets may appear concerning in it its specificity. But it does little to change the underlying security realities the group and its supporters face.
ASIO head Duncan Lewis has called for change to the way it issues questioning and detention warrants for terror suspects.
What are ASIO’s powers in detaining and questioning terror suspects? Does it need more to be effective?
Malcolm Turnbull has painted a grim picture about the dangers of terrorism.
The rules of engagement for Australian forces fighting Islamic State will be widened, with a proposed change in the law giving them legal power to target all parts of the armed organisation.
When parliament returns later this month, Labor's Anne Aly will become the first Muslim woman to take a seat in the lower house.
Nice attacker Mohamed Lahouaiej Bouhlel exemplifies how quickly ideology can be adopted.
Most cults build upon or modify existing religious doctrine, yet how they express these beliefs varies from group to group.
Malcolm Turnbull has called for nationally consistent laws to enable convicted terrorists to be detained at the end of their prison sentence.
A post-sentence regime for convicted terrorists will only keep Australians safe if an accurate assessment of risk is possible.
Malcolm Turnbull is asking state and territory ministers to help fast-track the scheme.
The proposed scheme would cover high-risk terrorist offenders.
Counter-terrorism co-ordinator Greg Moriarty.
The scheme will seek to identify people not on the radar of counter-terrorism authorities.
Australia has been cognisant of the challenges aviation security poses.
That Australia has not suffered a successful terrorist attack on its aviation industry is testament to the resilience of our security system.
The adjustment in Australia’s defence spending to 1.9% to 2% of GDP is reasonable.
The stakes around Australia's defence appear higher and the urgency greater than at any time since the height of the Cold War.
Malcolm Turnbull told the Lowy Institute Australia was united with Belgium in the battle against terror.
Violent Islamist extremism appears to have reached a crisis point in Europe with a "perfect storm" of circumstances, Malcolm Turnbull has said.
It is for George Brandis to decide whether and how to audit Commonwealth laws for justifiable encroachments on common law rights.
The Australian Law Reform Commission has given George Brandis a report that does all that it reasonably could, while falling well short of what it was asked to do.
Liberal MP Andrew Nikolic (right) is close to deposed prime minister Tony Abbott.
In an era of ever-increasing counter-terrorism powers, what is Andrew Nikolic’s appointment to a powerful parliamentary committee likely to mean for its scrutiny of national security legislation?
Prime Minister Malcolm Turnbull presents the defence white paper at the Australian Defence Force Academy in Canberra.
The Turnbull government’s defence white paper identifies key risks to Australia’s security environment in the next two decades.
Defence Minister Marise Payne inherited a draft of the defence white paper last year, but wanted to put her own stamp on it.
The defence white paper will pledge an additional $29.9 billion in defence spending over the coming decade and support for businesses to innovate in areas such as cyber security and aeronautics.