Offensive Cyber Security

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Strategic, Adversarial, Intelligence-Driven

In today’s threat landscape, conventional cybersecurity services fall short of addressing the complexity and intent behind targeted attacks. At NSI Global, we provide a highly specialised suite of offensive cybersecurity services that simulate real-world adversaries, expose unseen vulnerabilities, and deliver actionable insights to fortify your defences.

Our approach is intelligence-led and designed for organisations with elevated exposure — whether you’re operating in sensitive government sectors, critical infrastructure, private equity, digital finance, or executive leadership. We don’t provide commoditised testing or operate as a product reseller. Instead, we deliver tailored engagements including adversary emulation, AI/ML security testing, post-quantum readiness consulting, and ransomware forensic investigations, built to address your unique threat profile.

With operations across Australia, the UK, and strategic hubs in the Middle East and Southeast Asia, our global team blends deep technical expertise with operational discretion. Our offensive cyber services help clients validate their controls, improve incident readiness, and gain clarity around their true cyber posture — all without the need for unnecessary tooling or product dependencies.

To enhance your organisation’s security, we also have a range of related services. This includes our risk advisory services, which assesses your organisations and develops plans for a range of risks and threats to keep your people and data safe. Further, our due diligence investigation service can ensure that you have all the necessary information to make informed decisions about your organisation’s future. We can also assist with forensic data recovery if information or files have been deleted as a result of a cyber attack. Our digital forensic experts use advanced, restricted-access technology to safely and securely recover your data.

"NSI Global’s Offensive Cyber Security Unit (OCSU) delivers advanced services — from adversary emulation and ransomware forensics to deception operations and executive digital protection — enabling leadership to proactively assess and strengthen cyber resilience."

Explore Our Cyber Capabilities

Adversary Emulation & Red Teaming

Simulate nation-state and APT-level attacks to test your defences under real-world threat conditions.

ICS/OT Penetration Testing

Assess vulnerabilities across industrial control systems and operational technology in critical environments.

AI and Machine Learning Security Testing

Evaluate Artificial Intelligence models and machine learning infrastructure for adversarial risks, data poisoning, and prompt injection.

Post-Quantum Readiness

Prepare your cryptographic environment for future quantum computing threats through strategic advisory.

Executive and HNWI Protection

Protect digital identities, devices, and communications of executives and high-net-worth individuals.

Ransomware and Business Email Compromise (BEC) Forensics

Respond to ransomware and business email compromise with forensic-grade investigation and recovery support.

Cyber Posture Consulting

Benchmark and uplift your organisation’s cyber maturity with tailored strategic guidance and architecture reviews.

Blockchain and Crypto Security

Advisory-led services to secure digital assets, smart contracts, and blockchain infrastructure.

Global Perspective. Local Insight.

Our teams operate in Australia, the UAE, across the GCC, and worldwide, supporting enterprises, sovereign entities, and high-net-worth individuals with targeted, high-assurance cybersecurity services.

To confidentially discuss your organisation’s cyber security and the risks present, we can arrange a cyber risk assessment appointment at our radio-shielded, secure office in Olympic Park, Sydney. During this discussion, your privacy will be protected as our location is under-24 hour surveillance and has been fortified against bugging technology.

1300 000 NSI (674)

Secure your peace of mind