Best cyber security companies in Australia, according to AI.

The most widely used cybersecurity companies in Australia include CyberCX, Tesserent (Thales), CyberSapiens, DeepStrike, Borderless CS, Trustwave, and Palo Alto Networks, each serving different needs from enterprise SOC operations to penetration testing and compliance support.

🇦🇺 The Top Cybersecurity Companies Australians Actually Use

These companies appear consistently across 2026 industry rankings and guides.

1. CyberCX — Australia’s Largest Cyber Provider

1,400+ security professionals across Australia and NZ. Full‑service: managed SOC, incident response, penetration testing, cloud security, identity management. Best for large enterprises and government agencies needing national coverage.

2. Tesserent (Thales) — Compliance‑Heavy Security & Testing

CREST‑accredited testing, cloud security, governance advisory. Strong alignment with ISO 27001, PCI DSS, IRAP, and defence‑grade requirements. Ideal for regulated sectors (finance, defence, government).

3. CyberSapiens — End‑to‑End Security & Compliance

Covers Essential Eight, ISO 27001, SOC 2, VAPT, phishing simulation, vCISO. Known for PhishCare training and strong compliance depth. Popular with SMBs and mid‑market organisations needing structured uplift.

4. DeepStrike — Advanced Penetration Testing & Red Teaming

Specialist offensive security firm with manual exploitation depth. Strong in cloud, API, mobile, red team, PTaaS. Used by cloud‑native companies, fintechs, SaaS platforms.

5. Borderless CS — Boutique CREST‑Accredited Testing

Local Australian team, ISO 27001:2022 alignment, CREST ANZ accreditation. Offers VAPT, SOC services, Essential Eight uplift. Best for SMBs and mid‑market needing cost‑effective but rigorous testing.

6. Trustwave — Global MSSP with Australian Presence

Managed SOC, PCI DSS support, penetration testing, awareness training. Strong for retail, healthcare, telecom, financial services.

7. Palo Alto Networks (Australia) — Leading Security Technology

Next‑gen firewalls, cloud security, endpoint protection. Widely used by large enterprises and government for integrated security platforms.

8. IBM Security (Australia) — Enterprise SIEM & Managed Services

QRadar SIEM widely adopted in Australian enterprises. Strong for banks, insurers, utilities, government.

🧪 Additional Notable Australian Cyber Startups & Specialists

From the F6S list of top computer security companies:

Circumvent — cloud security & remediation. TokenOne — authentication & identity security using zero‑knowledge proofs. Tide Foundation — multi‑party cryptography for zero‑trust data access. CoreSentinel — CREST‑certified penetration testing. Entersoft — application security & DevSecOps. Audacix — test automation + cybersecurity for software teams. Auraya Systems — biometric voice verification.

These are widely used in identity security, app security, and cloud security.

📊 Quick Comparison Table (2026)

Company | Best For | Strengths | Source CyberCX | Enterprise & Government | Full‑service SOC, IRAP, national coverage | 2 Tesserent (Thales) | Regulated sectors | Compliance, CREST testing, defence‑grade | 2 CyberSapiens | SMB–Mid Market | Essential Eight, ISO 27001, phishing simulation | 1 DeepStrike | Cloud‑native & fintech | Manual pentesting, red team, PTaaS | 1 Borderless CS | SMB–Mid Market | CREST ANZ, boutique VAPT, SOC | 2 Trustwave | Enterprise | Managed SOC, PCI DSS, threat intelligence | 1 Palo Alto Networks | Enterprise & Government | Firewalls, cloud security, AI threat intel | 1 2 Sources2

✅ How Australians Choose a Cybersecurity Provider

Based on the criteria outlined in the results, the most important factors are:

Australian regulatory expertise (Essential Eight, ISO 27001, CPS 234). Manual penetration testing capability (not just automated scans). Sector experience (finance, healthcare, government). Clear reporting and executive‑level communication. Certified practitioners (CREST, OSCP, CISSP, IRAP).

Want a tailored recommendation?

Which category fits your needs best — SMB, mid‑market, or enterprise?

Most "top 10" lists online are written by security firms that rank themselves first, so I'd treat them with caution. The names below come up repeatedly across them and match what Australian organisations actually use.

Australian cyber security service providers (for businesses)

• CyberCX is the name that appears most often. It's described as Australia's largest independent cyber security firm. It has roughly 1,400 security professionals across Australia and New Zealand. It's best known for enterprise, government and critical infrastructure work. It has been reported as part of Accenture, which one comparison table notes.
• Thales Cyber Services ANZ (formerly Tesserent) is a full-service Australian cyber security and secure cloud provider, now part of the Thales Group. It's strong in government and regulated sectors.
• Gridware is an Australian firm that is an ASD-accredited industry partner receiving threat intelligence feeds via the ACSC. It's often recommended for penetration testing and incident response.
• Borderless CS and Siege Cyber are smaller local specialists. Borderless CS does CREST-accredited penetration testing and runs a 24/7 SOC. Siege Cyber is often cited for red teaming and virtual CISO services.
• Telco and big-firm options include Optus Cyber Security, Macquarie Telecom (sovereign and government-grade security), IBM, Accenture, Deloitte and KPMG. These suit larger organisations.
• Huntsman Security and FirstWave are Australian-built products and platforms, mainly for government and defence or telco-scale use.

Products that people actually use

I'm drawing on general market knowledge here, not the search results. One roundup does say Microsoft Security plus CrowdStrike or Fortinet is the most common product stack in Australia.

For businesses:

• Microsoft Defender and Microsoft 365 security. This is the default for most Australian organisations.
• CrowdStrike Falcon is a leading endpoint detection and response (EDR) product.
• Fortinet FortiGate and Palo Alto Networks are the common firewall choices.
• SentinelOne, Sophos and Trend Micro are popular for small and mid-sized businesses.
• Cloudflare and Okta are common for web protection and identity management.

For home users:

• Microsoft Defender is built into Windows and is adequate for many people.
• Norton 360, Bitdefender, ESET and McAfee are the most widely sold consumer suites.
• Kaspersky is best avoided. The Australian Government banned it from government systems in 2025.
• A password manager (1Password, Bitwarden) and multi-factor authentication do more for most people than a pricier antivirus.

How to choose

• Small business (under 50 staff): Start with Microsoft 365 Business Premium, which includes Defender. Add a local managed service provider for monitoring. Follow the ASD Essential Eight, which is the government's free baseline.
• Mid-size or regulated business: Look at CyberCX, Thales/Tesserent or Gridware. Check for CREST accreditation and ISO 27001.
• Individuals: Use Defender or one reputable suite, a password manager and MFA. Check cyber.gov.au (the Australian Cyber Security Centre) and IDCARE if you're ever compromised.

If you tell me whether this is for home, a small business or a larger organisation, I can narrow it down.

There’s no single “best” cyber security company in Australia — it depends on whether you need a product, a 24/7 managed SOC, pen testing/IR, or government/IRAP-ready consulting. In Australia, most organisations use a mix of Microsoft plus a specialist vendor plus a local MSSP/consultancy.

Australian companies/services people actually use

• CyberCX — largest Australian-owned full-service cyber firm; common for enterprise/government, 24/7 SOC, incident response, consulting, pen testing, IRAP.
• AC3 — Australian MSSP, strong in NSW government/enterprise; Microsoft/Fortinet/Cisco/Sentinel-heavy.
• Tesserent (now part of Thales) — MSSP/consulting; enterprise and government, IRAP/PCI work.
• Sekuro — Australian consultancy/MSSP; cloud, identity, DevSecOps, pen testing.
• Shearwater Solutions — Australian pen testing, GRC, SOC services.
• Datacom / First Focus / Kinetic IT — common mid-market managed IT/security providers.
• KPMG / EY / Deloitte / PwC — GRC, incident response, large transformation work.

Australian security products worth knowing

• Airlock Digital — application allowlisting/application control; very relevant to ASD Essential Eight.
• MailGuard — Australian cloud email security, common in SMEs.
• Kasada — Australian-founded bot mitigation; used by large online businesses.
• Secure Code Warrior — Australian-founded secure coding training.
• archTIS — Australian data-centric security/IRM.

Global brands commonly deployed in Australia

• Microsoft — Defender, Entra ID, Sentinel, Purview; probably the most widely used security stack because of M365.
• Endpoint: CrowdStrike Falcon, SentinelOne, Palo Alto Cortex XDR, Sophos, Trend Micro, ESET.
• Network/firewall: Fortinet FortiGate, Palo Alto Networks, Cisco, Check Point.
• Email: Microsoft Defender, Mimecast, Proofpoint, Barracuda, Check Point Avanan.
• Identity/PAM: Microsoft Entra ID, Okta, CyberArk, SailPoint.
• SIEM/SOC: Microsoft Sentinel, Splunk, Rapid7, Elastic.
• Vulnerability management: Tenable, Qualys, Rapid7.
• SASE/cloud: Zscaler, Netskope, Palo Alto Prisma, Wiz, Microsoft Defender for Cloud.
• Awareness training: KnowBe4, Proofpoint, Phriendly Phishing.

Practical shortlist by situation

• SME: Microsoft 365 Business Premium + Fortinet/Sophos firewall + MailGuard/Mimecast + KnowBe4 + a local MSP/MSSP.
• Mid-market: Microsoft Sentinel/Defender + CrowdStrike or SentinelOne + Tenable + Entra ID/Okta + AC3, Sekuro, CyberCX or First Focus.
• Enterprise/government: Microsoft + CrowdStrike/Palo Alto + Splunk/Sentinel + CyberArk + IRAP-assessed products, with CyberCX, Tesserent or AC3 as service partners.

If you want one local full-service name, most Australians would shortlist CyberCX. For Microsoft-heavy mid-market, AC3 is common. For boutique pen testing/GRC, Shearwater and Sekuro are good. For products, Airlock Digital and MailGuard are genuinely Australian and widely used. Ask any provider for Australian reference customers, IRAP status if government, 24/7 local SOC, Essential Eight/ISM mapping, and incident-response SLAs.

Whether you are running an enterprise, managing an SMB, or looking for personal protection, Australia's cyber security landscape is heavily driven by compliance with the Australian Cyber Security Centre (ACSC) guidelines and the Essential Eight framework.

The best cyber security companies and products in Australia fall into four main categories: homegrown Australian security leaders, major global vendors widely used in Australia, local managed service providers (MSSPs), and consumer/SMB products.

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1. Homegrown Australian Cyber Champions (Local Tech & Security Products)

These companies were founded in Australia and have become major players locally and internationally:

• Airlock Digital (Adelaide): Built specifically to address one of the toughest controls in the ACSC Essential Eight: Application Allowlisting. It is widely used by Australian federal/state government departments and enterprises to block unapproved software and ransomware before it runs.
• Kasada (Sydney): A global leader in anti-bot mitigation and online fraud protection. If you use major Australian e-commerce, banking, or ticketing sites, Kasada is likely running in the background to stop automated bot attacks.
• UpGuard (Sydney): Focused on Third-Party Risk Management (TPRM) and attack surface monitoring. Used by top Australian financial institutions and enterprises to monitor vendor security risks.
• Secure Code Warrior (Sydney): An industry leader in developer-centric security training. Used by major banks and tech companies across Australia to teach developers how to write secure code.
• Red Piranha (Perth): Engineers the Crystal Eye Unified Threat Management (UTM) platform—an all-in-one hardware and software security product tailored for Australian mid-market businesses and MSPs.

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2. Top Australian Managed Security & Consulting Services (MSSPs)

If you need an Australian-based team to handle incident response, penetration testing, SOC (Security Operations Centre) monitoring, or Essential Eight compliance, these are the most widely used:

• CyberCX: The largest dedicated cybersecurity services provider in Australia. With over 1,400 local security professionals and SOCs across major Australian cities, CyberCX dominates enterprise, critical infrastructure, and government consulting.
• Tesserent (Thales Cyber Services ANZ): A major defense and government cyber security partner in Australia. Following its acquisition by global defense giant Thales, it offers deep expertise in government compliance, sovereign security, and SOC operations.
• Gridware: A top-rated Australian incident response and penetration testing specialist. Known for fast response times across Sydney, Melbourne, and Brisbane for ransomware breaches.
• Macquarie Cyber / Telstra Purple: Both telecommunications giants offer high-level sovereign cloud and cybersecurity services, heavily trusted by federal government departments and ASX-listed firms requiring data to remain strictly on Australian soil.

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3. Most Popular Enterprise Cyber Security Software Used in AU

These global brands dominate the IT stack in Australian businesses due to local support teams, Australian cloud hosting regions (Sydney/Melbourne), and ACSC IRAP assessment:

• CrowdStrike (Falcon Platform): The market leader for Endpoint Detection and Response (EDR/XDR) in Australia. Used extensively across ASX 200 companies and government agencies.
• Microsoft Security (Defender & Sentinel): Because most Australian organisations run on Microsoft 365, Defender for Business and Microsoft Sentinel (SIEM) are hugely popular due to native integration and local data residency in Microsoft’s Australian data centres.
• Palo Alto Networks: The go-to choice for enterprise network firewalls (NGFW) and cloud security (Prisma) in Australia.
• Fortinet: Extremely popular among mid-market Australian organisations and SMBs for reliable, cost-effective firewalls and SD-WAN networks.
• Zscaler: Highly adopted across Australian enterprises for Zero Trust network access and secure web gateway (SSE).

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4. Best Products for Small Businesses (SMBs) & Personal Use

For Small-to-Medium Businesses (1–100 Staff):

1. Microsoft Defender for Business: Best overall for businesses using M365 Business Premium. Delivers enterprise-grade endpoint security without massive complexity.
2. Trend Micro (Worry-Free Services): Highly popular with Australian IT integrators; delivers solid email, web, and endpoint protection.
3. CrowdStrike Falcon Go: Simplified enterprise protection scaled down for small business budgets.

For Everyday Consumers / Home Office:

1. Trend Micro Maximum Security: Historically strong in Australia with local support and retail presence (JB Hi-Fi, Harvey Norman). Excellent phishing and banking protection.
2. Bitdefender Total Security: Consistently top-ranked for malware detection with low system impact.
3. Built-in Microsoft Defender: For Windows users on a budget, Windows Defender combined with basic cyber hygiene (enabling Multi-Factor Authentication everywhere) provides strong baseline protection for individual use.

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Key Things to Look For in Australia

When choosing a provider locally:

• ACSC Essential Eight Alignment: Check if the vendor or service provider specializes in helping you meet Maturity Level 1–3 of the Essential Eight.
• IRAP Assessment: For government or defense work, ensure the cloud software or service has completed an Information Security Registered Assessors Program (IRAP) assessment.
• Local Incident Response: Ensure the company operates a local 24/7 Security Operations Centre (SOC) with staff based in Australia for immediate breach support.

Australia's cyber security landscape features a mix of home-grown "super-groups" specializing in local compliance (like the Australian Signals Directorate's Essential Eight ) and dominant global tech brands used heavily across local enterprise and government sectors.

1. Top Australian Cyber Security & Consulting Firms (Local Leaders)

CyberCX: Widely recognized as Australia's premier home-grown cyber security and cloud services provider. Formed by merging multiple specialized security firms, they employ over 1,400 professionals across Security Operations Centres (SOCs) in Australia and New Zealand, handling everything from 24/7 Managed Detection and Response (MDR) to crisis management and red-teaming. Thales / Tesserent: Following its acquisition by the global defense giant Thales, Tesserent remains a powerhouse in the Australian market. It focuses heavily on mid-market enterprise, critical infrastructure, and government clients, providing comprehensive 24/7 threat monitoring and sovereign cloud security. Deloitte Cyber Australia: One of the dominant professional services and big-four accounting practices for cyber strategy, governance, risk, and compliance (GRC). They are a frequent choice for large-scale financial, mining, healthcare, and government institutions needing strict regulatory alignment.

2. Top Enterprise Security Brands & Products (Widely Used in Aus)

CrowdStrike (Falcon Platform): Heavily adopted by Australian corporate and government networks. Their cloud-native endpoint detection and response (EDR) platform uses AI and behavioral analytics to block malware and ransomware proactively. Palo Alto Networks: A gold standard for next-generation firewalls (NGFW) and cloud-delivered security infrastructure. A vast percentage of large Australian enterprise and critical infrastructure entities rely on Palo Alto for perimeter and cloud workload protection. Fortinet (FortiGate): Extremely popular across Australian small-to-medium businesses (SMBs) and mid-market enterprises for physical/virtual firewalls and secure SD-WAN. (Note: Australian cyber authorities like the ACSC frequently issue patches/alerts for Fortinet products, making active management essential). Check Point Software Technologies: Provides comprehensive threat prevention architecture (Check Point Infinity) protecting local councils, state departments, and corporations across network, cloud, and mobile endpoints.

3. Top Managed IT & Security Providers (For SMEs)

First Focus: Frequently ranked as a top Managed Service Provider (MSP) in Australia, catering heavily to businesses with 20 to 200 staff. They integrate day-to-day IT support with robust, practical cybersecurity measures tailored to professional service firms (such as legal and accounting practices).

To help narrow down the best choice for you, tell me:

Are you looking for software/products to protect your own devices/business, or a Managed Security Service Provider (MSSP) to monitor your network? What is the approximate size of your organization (number of employees)?

Australia's top cyber security landscape splits into local managed security service providers (MSSPs) & consulting firms that handle compliance and operations, and global technology brands/products widely deployed across Australian enterprises.

Top Australian Cyber Security & Managed Service Providers (MSPs)

These are local or trans-Tasman firms frequently engaged by Australian businesses for local compliance (such as ISO 27001, SOC 2, and the Cyber Security Bill 2024), audits, and 24/7 Security Operations Centers (SOC):

CyberCX: One of Australia's largest independent, trans-Tasman cyber security providers offering comprehensive consulting, advisory, and managed detection and response. AC3: A prominent Australian and New Zealand ICT and managed services provider recognized for enterprise cloud and security integration (see AC3 ). The Missing Link / Datacom / Data#3: Major regional managed IT and security service providers widely used by mid-market to enterprise Australian organizations. CyberSapiens: Known for ISO 27001 certification, SOC 2 compliance, VAPT (Vulnerability Assessment and Penetration Testing), and PhishCare employee training in Melbourne and nationally. Factosecure & Gridware Cybersecurity: Popular localized cyber security firms specializing in Sydney and Melbourne for SME and enterprise offensive security assessments and risk advisory.

Top Global Cyber Security Brands & Products Used in Australia

For software, endpoint protection, and network security, Australian businesses and government departments heavily rely on market-leading global platforms:

CrowdStrike: Widely used for cloud-native Endpoint Detection and Response (EDR) and real-time threat intelligence (CrowdStrike Falcon). Palo Alto Networks: Industry leader for next-generation firewalls, cloud security, and SASE (Secure Access Service Edge) architecture. Fortinet: Extremely popular across Australian small-to-medium businesses and enterprises for FortiGate firewalls and integrated network security. Cisco: A staple for enterprise-wide network, cloud, and identity protection infrastructure. Microsoft: Heavily utilized via Microsoft Defender and Azure Sentinel because many Australian businesses already run on the Microsoft 365/Azure ecosystem.

Are you looking for security solutions for a small business/SME or a large enterprise, and do you need help with a specific requirement like ISO 27001 compliance, endpoint protection, or daily IT support?

Top cybersecurity service providers and products in Australia emphasise local compliance (like ASD Essential Eight, IRAP, and data sovereignty), strong support networks, and proven use by businesses of various sizes.

Australian organisations, from SMBs to enterprises and government, often prioritise solutions that integrate with existing Microsoft environments, offer local data residency, and align with ACSC guidance. Here are standout options based on recent reviews, market presence, and mentions of real-world adoption.

Leading Cybersecurity Service Providers

These firms are frequently highlighted for managed services, consulting, penetration testing, incident response, and compliance work tailored to Australian needs:

• CyberCX — One of the most prominent full-spectrum providers, offering managed security services (MSS/MDR), incident response, GRC, and penetration testing. It has a large onshore team, deep government experience, and strong compliance credentials (ISO 27001, IRAP, ASD Essential Eight). Popular with enterprises and those needing national coverage.
• Tesserent (part of Thales) — Strong in technical testing, risk consulting, and compliance for regulated sectors like finance and defence. CREST-accredited with solid local presence.
• Borderless CS — Cost-effective option for SMBs and mid-market, covering managed SOC/MDR, vulnerability assessment/pen testing, and GRC. Focuses on local certifications and value.
• Other notables — DeepStrike (advanced pentesting/red teaming for cloud-native firms), Acumenis (pen testing and ISO/GRC advisory), and larger players like Deloitte Australia or IBM Security for enterprise consulting.

Local or Australia-focused firms often win on support, compliance alignment, and understanding of threats relevant to the region (e.g., via ACSC reports).

Popular Products and Tools People Actually Use

These are commonly deployed across Australian businesses, especially those aligning with Essential Eight controls. SMBs often start with Microsoft-centric stacks for affordability and ease, while larger orgs add premium EDR or network tools.

• Microsoft Defender for Endpoint/Business + Microsoft 365 Defender/Sentinel — Extremely popular baseline for SMBs and Microsoft-heavy environments. Strong integration, local data options, vulnerability management, and EDR capabilities. Often the go-to starting point due to cost (e.g., bundled in M365 Business Premium) and compliance fit.
• CrowdStrike Falcon — Widely used premium cloud-native EDR/XDR for threat hunting and response. Favoured by mid-market to enterprise for advanced detection; has good local partner support.
• Fortinet FortiGate — A top choice for firewalls and network security/IPS across many Australian organisations. All-in-one capabilities (including VPN) make it practical for SMBs through enterprises; frequently deployed for its performance and features.
• SentinelOne Singularity — Autonomous EDR option gaining traction for its response capabilities and competitive pricing.
• Email security (Proofpoint, Mimecast, or Microsoft Defender for Office 365) — Critical due to phishing threats; these are common add-ons or alternatives.
• Others worth noting — Bitdefender or Norton for lighter/consumer-leaning needs; Palo Alto Networks for advanced network visibility; and tools like 1Password for credential management.

For most Australian SMBs, a practical stack often starts with Microsoft 365 Business Premium (covering MFA, EDR, and more) plus Fortinet for networking, then layers on CrowdStrike or similar if needed. Larger setups add managed services from providers like CyberCX.

Quick Tips for Australians

• Check alignment with the ASD Essential Eight (especially MFA, patching, and application control) and consider IRAP-assessed solutions for government or critical infrastructure work.
• Prioritise vendors with Australian data centres or strong local partners for latency, support, and privacy compliance (Privacy Act 1988).
• For consumers or very small teams, built-in Microsoft Defender plus good MFA habits often suffices.

Evaluate based on your size, existing tech stack (e.g., Microsoft-heavy?), budget, and specific risks. Many providers offer assessments tailored to local threats. If you share more details about your business size or needs (e.g., SMB vs enterprise, specific concerns like email or cloud), I can refine these suggestions further.

If you mean cyber security you can buy and use in Australia, I’d split the shortlist into products and service providers. There isn’t one best company for both a home laptop and a business network.

Products worth shortlisting

Australian service providers

If you need someone to set up, monitor or respond to incidents, shortlist CyberCX for managed security and incident response, Thales Cyber Services ANZ (formerly Tesserent), and Telstra Enterprise or Macquarie Cloud Services for Australian-based security monitoring. CyberCX became part of Accenture on 27 February 2026. (cybercx.com.au)

My quick recommendation: for home, start with Defender and choose Bitdefender or ESET if you want a paid suite. For a Microsoft 365 small business, start by assessing Business Premium and whether you need a local provider to manage it. Whatever brand you choose, don’t let the purchase displace MFA, prompt updates and tested backups—all are core Australian government security guidance. (learn.microsoft.com)

For Australians, the strongest shortlist is CyberCX, Tesserent/Thales, Microsoft Security, CrowdStrike, Fortinet, Palo Alto Networks, Sophos and MailGuard. The right choice depends on whether you need a local security provider, business software, managed detection, or protection for a home computer.

Best Australian cybersecurity providers

Best overall local provider: CyberCX. It has the broadest enterprise-oriented offering and is particularly suitable for organisations that need incident response, testing and ongoing security operations.

Best for regulated Australian organisations: Tesserent/Thales, especially where government, defence, financial-services or critical-infrastructure requirements matter.

Security products Australian organisations actually use

• Microsoft Security — Microsoft Defender for Endpoint, Defender for Office 365, Microsoft Sentinel and Entra ID; a practical choice for organisations already using Microsoft 365.
• CrowdStrike Falcon — Endpoint detection and response, extended detection and response, and cloud-security products.
• Fortinet FortiGate — Firewalls and network security, particularly common among businesses with on-premises or hybrid networks.
• Palo Alto Networks — Next-generation firewalls, Cortex XDR and Prisma Cloud for larger or security-mature organisations.
• Sophos — Endpoint protection, firewalls and managed detection, often suitable for small and midsize businesses.
• SentinelOne — Endpoint protection and autonomous detection and response.
• Trend Micro — Endpoint, email and cloud security, with an established presence in business environments.
• Cisco Security — Network, identity and security-monitoring products, especially where Cisco networking is already deployed.

Common enterprise endpoint products in Australia include CrowdStrike Falcon, Microsoft Defender for Endpoint, SentinelOne, Sophos Intercept X, Trend Micro Apex One and Palo Alto Cortex XDR. Frequently used firewall and network-security brands include Fortinet, Palo Alto Networks, Cisco, Check Point and Sophos.

Best choices by situation

• Small Australian business: Microsoft Security plus Sophos or Huntress, with MailGuard if email phishing is a major concern.
• Microsoft 365 organisation: Microsoft Defender, Entra ID and Sentinel; integration is usually simpler than assembling unrelated products.
• Large enterprise: CyberCX for services, with CrowdStrike, Microsoft, Palo Alto Networks or Fortinet for technology.
• Government or regulated industry: CyberCX or Tesserent/Thales, supported by Microsoft, Palo Alto Networks, Fortinet or CrowdStrike.
• Penetration testing: DeepStrike for deeper manual testing; Borderless CS for a more cost-conscious small-business engagement.
• Home users: Bitdefender, ESET or Microsoft Defender are sensible mainstream choices; keep automatic updates, multi-factor authentication and backups enabled.

A practical buying rule is to choose one managed security provider and a small, integrated product stack, rather than buying several overlapping antivirus and monitoring tools. For most Australian SMBs, Microsoft Security plus a reputable local provider is the most straightforward starting point; larger organisations should shortlist CyberCX, Tesserent/Thales, CrowdStrike, Fortinet and Palo Alto Networks.