Terrorism and Violent Extremism: An Evolving Security Challenge
Updated: 2 hours ago
Safeguarding Today's Priorities. Preparing for Tomorrow's Challenges.
Terrorism remains a low-frequency threat for most Australian organisations. Its potential consequences, however, mean it cannot simply be dismissed because an organisation, facility or precinct has never experienced a terrorist incident.
The more important consideration for security practitioners is how the threat is changing.
Australia's national terrorism threat level remains PROBABLE, meaning there is a greater than 50 per cent chance of an onshore attack or attack planning in the next twelve months. Australian Government advice also describes a volatile domestic environment influenced by individual grievance, conspiracy theories, anti-authority ideology, international events and violent extremist narratives. [nationalse...ity.gov.au]
The 2026 Director-General of Security Annual Threat Assessment reinforces the broader deterioration in Australia's security environment, identifying increasingly interconnected challenges across terrorism, sabotage, espionage and foreign interference. [intelligence.gov.au]
For organisations responsible for people, facilities, campuses, public spaces and major events, the implication is not that every site should adopt extraordinary security measures. Rather, it is that terrorism and violent extremism should form part of a mature understanding of the reasonably foreseeable security environment, particularly where an organisation operates accessible, symbolic or crowded places.
The Threat Is Becoming More Difficult to Categorise
Traditional approaches to terrorism often focused heavily on established extremist groups, identifiable ideologies and relatively structured pathways towards violence.
The contemporary environment is less straightforward.
Australian Government advice highlights domestic actors driven by socio-political issues intersecting with personal grievances, as well as conspiracy theories, anti-authority ideologies and blended ideological motivations. Social media also continues to provide a mechanism through which extremist narratives and global influences can reach new audiences at significant scale.
This matters because protective security cannot depend solely on identifying a particular ideology or known extremist organisation.
From a security risk perspective, the more useful questions are often:
Who might seek to cause harm? What could motivate or enable them? How might they act? What could they target? What would the consequences be?
This represents an important distinction between threat actors and threat events.
An individual motivated by violent extremism represents one potential threat actor. The event that ultimately creates harm, however, is the mechanism through which intent and capability interact with an organisation's exposure and vulnerabilities.
Understanding both is essential.
Soft Targets and Accessible Environments
One of the enduring challenges of terrorism is the attractiveness of places where people gather.
Australia's 2026 Strategy for Protecting Crowded Places from Terrorism identifies locations including stadiums, shopping centres, pedestrian malls and major events as continuing to present attractive targets. It also makes an important practical point: it is not possible to protect everything. Owners and operators therefore need to prioritise higher-risk areas and adopt measures that are proportionate while, as far as possible, preserving normal public use and enjoyment.
This principle extends well beyond major stadiums and iconic venues.
Universities, schools, commercial precincts, hotels, cultural institutions, transport environments, entertainment venues and community facilities can all combine public accessibility with concentrations of people.
That accessibility often exists for good reason.
An overly hardened environment can undermine the very purpose of a place. Universities need to feel like universities. Schools need to remain welcoming learning environments. Hotels depend upon hospitality.
Public spaces should remain accessible to the communities they serve.
The objective of protective security is therefore not necessarily to transform a soft target into a fortress.
It is to understand exposure and introduce proportionate layers of security that make harmful actions more difficult, improve opportunities for detection and intervention, reduce potential consequences and strengthen the organisation's ability to respond and recover.
From Threat Actor to Threat Event
One difficulty with terrorism assessments is the temptation to treat "terrorism" as a single risk.
Operationally, it is not.
Different actors can create very different threat events, while similar attack methods can arise from different motivations.
Current Australian Government advice states that attacks in Australia are likely to be low-cost and use readily available weapons and relatively simple tactics. This has significant implications for organisational security because sophisticated capability is not necessarily required to generate serious consequences.
Accordingly, protective security assessment should move beyond broad labels and consider credible pathways through which harm could occur.
For Montane, this is where the Apex Threat Actors and Apex Threat Event Framework become particularly useful analytical concepts.
The starting point is understanding the actor's potential intent, capability, motivation and access. That understanding can then be translated into credible threat events relevant to the particular operating environment.
The distinction is important.
Rather than assessing terrorism abstractly, an organisation can consider how particular actors and events might intersect with its people, assets, activities, vulnerabilities and critical functions.
This produces a considerably more useful basis for security decision-making.
Protective Security Should Be Consequence-Focused
Not every credible threat warrants the same level of treatment.
Protective security should therefore consider likelihood alongside consequence, particularly when examining low-probability, high-consequence events.
This is where generic security checklists become less useful.
A crowded public event, research facility, corporate office, school campus and critical infrastructure site may face some common threat actors, although their vulnerabilities, consequences and appropriate controls can differ substantially.
Security measures should consequently be informed by the environment in which the organisation actually operates.
For some sites, vehicle access and hostile vehicle mitigation might warrant closer consideration. Elsewhere, priorities may centre on access control, visitor management, suspicious behaviour reporting, emergency communications, lockdown arrangements, staff awareness or coordination with emergency services.
There is no universally correct combination.
The appropriate response is a security-in-depth posture in which complementary physical, procedural, technological and human measures address credible threat pathways while remaining proportionate to the organisation's exposure and operating context.
Preparedness Matters as Much as Prevention
A capable protective security posture must also recognise an uncomfortable reality: prevention cannot be guaranteed.
Australia's crowded places strategy explicitly acknowledges that, despite the capability of Australia's law enforcement and intelligence agencies, it will not always be possible to prevent every terrorist attack. Its objective therefore extends to improving the resilience of crowded places.
That distinction is significant.
Security planning should consider what happens before, during and after a serious incident. Before an event, organisations can focus on deterrence, detection, access management, threat recognition and early intervention.
During an event, priorities shift towards immediate protective actions, communication, emergency response and the protection of life.
After an event, command arrangements, business continuity, stakeholder communication and organisational recovery become increasingly important.
Preparedness therefore extends beyond guards, cameras, barriers and access control systems. It encompasses whether people understand what to do when normal assumptions no longer apply.
Security Without Creating a Fortress
Perhaps the most important challenge is proportionality. The purpose of terrorism protective security is not to make every organisation look and operate like a high-security facility.
Indeed, indiscriminate security measures can impose substantial financial, operational and cultural costs while providing limited reduction in actual risk.
Good security design is more deliberate.
It considers the prevailing threat environment, identifies credible threat actors and events, examines how those events could interact with the organisation, and evaluates the potential consequences.
Controls can then be selected because they address an identified exposure rather than because they are conventionally associated with "security".
Sometimes that may mean physical hardening.
Frequently it means something less visible: better surveillance, improved natural observation, clearer access arrangements, appropriately trained personnel, effective escalation procedures, stronger emergency planning or better integration between security and operational teams.
The objective is not maximum security. It is appropriate security.
Understanding the Threat Before Selecting the Solution
Australia's contemporary terrorism environment reinforces a broader principle of protective security: security measures should follow threat understanding, not precede it.
Organisations should resist jumping immediately from a perceived threat to a technological or physical solution.
The more useful sequence is:
Threat Actor → Threat Event → Exposure and Vulnerability → Consequence → Risk → Proportionate Treatment
This approach provides a clearer connection between the external threat environment and organisational decision-making.
It also helps prevent both extremes of security planning:
underestimating credible threats because they appear unlikely or overreacting to them because their consequences are severe.
Effective protective security sits between those positions.
It requires organisations to understand what is changing around them, identify what genuinely matters within their environment, and make informed decisions about where finite security resources will make the greatest difference.
Because ultimately, preparedness is not about predicting exactly what will happen.
It is about ensuring that when circumstances change, the organisation is sufficiently aware, prepared and resilient to respond.
About the Apex approach
Apex Threat Actors provides a structured way to examine the people or groups capable of creating security harm, including their intent, capability, motivation and potential access.
The Apex Threat Event Framework translates that understanding into credible events and attack pathways relevant to a particular organisation, facility or operating environment.
Together, they support a threat-informed and consequence-focused approach to protective security assessment, helping organisations move beyond generic risk categories towards a clearer understanding of who or what could cause harm, how that harm could occur, and where proportionate security measures can most effectively reduce exposure and consequence.
Montane Protective Security provides intelligence-informed protective security, risk assessment and security advisory services to organisations operating in complex environments.
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