Top 10 Infrastructure Security Testing Service Providers in Australia

Internal Network Testing

Simulates an attacker who already has a foothold inside the network, checking lateral movement, privilege escalation, and segmentation.

External Network Testing

Tests what an internet-facing attacker can reach: exposed ports, services, and perimeter defences.

Server Hardening Review

Checks patch levels, exposed services, and configuration against hardening baselines such as the Essential Eight.

Cloud Configuration Testing

Reviews AWS, Azure, or GCP environments for misconfigured storage, identity and access management, and network controls, the root cause of most cloud breaches.

Bulletproof

An Australian, CREST-accredited firm (part of Macquarie Technology Group) offering infrastructure and application testing mapped to ISO 27001 and PCI DSS, aimed at enterprise and government clients.

CyberCX

One of the largest dedicated cybersecurity firms headquartered in Australia, CREST-accredited as CyberCX Pty Ltd, offering internal and external network testing, cloud assessment, and red team exercises through its Security Testing and Assurance practice.

IBM Security Australia

Infrastructure testing delivered through IBM’s X-Force offensive security practice, backed by global threat intelligence. Best suited to large enterprises already running other IBM security tooling.

Kinetic IT

A Western Australia-based managed IT services firm with a dedicated cybersecurity practice covering on-premises and cloud testing. Security testing sits alongside broader managed IT work rather than being Kinetic IT’s core focus.

LevelBlue (Trustwave)

Trustwave’s SpiderLabs testing team, now operating under LevelBlue following AT&T Cybersecurity and Trustwave’s 2025 merger. Focuses on penetration testing and compliance-driven assessments for organisations handling sensitive data.

NCC Group Australia

A globally recognised, CREST-accredited testing specialist with an Australian presence, offering network, cloud, and embedded-systems assessments for larger organisations.

Shearwater Solutions

A Perth-headquartered Australian cybersecurity specialist offering vulnerability assessments and penetration testing, with a client base concentrated in telecommunications, finance, and healthcare.

Sophos (Secureworks)

Infrastructure testing backed by threat intelligence and incident response capability, now part of Sophos following its US$859 million acquisition of Secureworks in 2025.

Thales Cyber Services ANZ

Managed security and testing services formerly operating as Tesserent, now part of Thales Group’s global cybersecurity business following its 2023 acquisition, with a particular focus on sovereignty-conscious government and defence-adjacent clients.

Essential Eight Maturity Model

The Australian Signals Directorate’s baseline mitigation strategies, mandatory for non-corporate Commonwealth entities and widely adopted elsewhere as a benchmark. Infrastructure testing is one of the practical ways organisations evidence their maturity level against it. See the ASD’s Essential Eight guidance.

APRA CPS 234

Applies to APRA-regulated banks, insurers, and superannuation funds, and requires regular testing of security controls, including by independent parties, to confirm they operate as intended.

Security of Critical Infrastructure (SOCI) Act

Covers energy, water, healthcare, communications, and other critical infrastructure sectors, with risk management programme obligations that typically require infrastructure testing to identify and manage vulnerabilities.

Privacy Act 1988

Requires “reasonable steps” to protect personal information. Infrastructure testing is commonly cited as evidence of meeting that standard for systems that store or process personal data, particularly following the Act’s recent penalty increases.

What is infrastructure security testing?

It evaluates the IT environment itself, networks, servers, and cloud platforms, to find vulnerabilities an attacker could exploit, separate from testing the applications that run on top of it.

Why does infrastructure security testing matter for Australian businesses?

It finds weaknesses before attackers do, supports compliance with frameworks such as the Essential Eight and CPS 234, and protects data, critical systems, and business continuity.

What types of infrastructure testing are typically offered?

Internal and external network testing, server hardening reviews, cloud configuration testing, and sometimes social engineering or physical security assessments, depending on the provider.

How often should companies conduct infrastructure security testing?

At least annually is the common baseline, and after any major infrastructure change, cloud migration, or security incident. Regulated entities under CPS 234 or the SOCI Act often test more frequently.

Which sectors in Australia benefit most from infrastructure security testing?

Finance, government, healthcare, energy, and telecommunications, given their critical infrastructure obligations and the regulatory frameworks (SOCI Act, CPS 234) that apply to them specifically.