Offensive Cyber Security

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Strategic, Adversarial, Intelligence-Driven

Founded in 2004 by Navid Sobbi, NSI Global provides offensive cyber risk assessments, penetration testing, AI and machine-learning security testing, post-quantum cryptography readiness advisory and threat-detection control testing for Australian government and enterprise clients. The principal-led Offensive Cyber Security Unit includes specialists from military, intelligence and law-enforcement backgrounds and works alongside NSI Global’s TSCM and digital-forensics teams to assess authorised cyber, physical and technical-surveillance attack paths.

Why Business Cybersecurity Services Are Essential in Australia

Relevant threat scenarios include ransomware, credential theft, phishing, business email compromise and state-sponsored intrusion. Assessments identify exploitable weaknesses and evaluate whether existing controls can prevent, detect and contain those scenarios.

Where an incident has already occurred, NSI Global’s digital forensic incident response service can preserve and examine relevant evidence, reconstruct activity and assess recoverable data.

What Makes NSI Global Different from Other Cybersecurity Firms in Australia

NSI Global’s Offensive Cyber Security Unit conducts authorised penetration testing, adversary emulation and control validation to identify exploitable weaknesses and test detection and response capabilities. Engagements are principal-led by founder Navid Sobbi and can involve NSI Global’s TSCM specialists where the authorised scope includes physical or technical-surveillance attack paths.

Cybersecurity Protection Services

Our approach goes beyond standard cybersecurity services. We integrate offensive strategies with continuous monitoring, helping organisations stay ahead of emerging threats. Engagements can combine scoped penetration testing, adversary emulation, control validation and monitoring. Findings document affected assets, supporting evidence, risk ratings and prioritised remediation actions. Services are provided to government and enterprise clients handling sensitive information and intellectual property.

Explore Our Cyber Capabilities

Cyber Posture Consulting

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

AI Penetration Testing & ML Security

Evaluate Artificial Intelligence models and machine learning infrastructure for adversarial risks, data poisoning, and prompt injection.
AI Penetration Testing & ML Security

Adversary Emulation & Red Teaming Services

Conduct authorised adversary emulation using threat-informed tactics, techniques and procedures, with findings mapped to MITRE ATT&CK where applicable.
Adversary Emulation & Red Teaming Services

Post-Quantum Cryptography & Readiness Advisory

Prepare your cryptographic environment for future quantum computing threats through strategic advisory.
Post-Quantum Cryptography & Readiness Advisory

Ransomware Incident Response & BEC Forensics

Respond to ransomware and business email compromise through forensically sound evidence preservation, investigation and recovery support.
Ransomware Incident Response & BEC Forensics

Executive & High-Net-Worth Cyber Security

Protect digital identities, devices, and communications of executives and high-net-worth individuals.
Executive & High-Net-Worth Cyber Security

Blockchain & Crypto Security

Advisory-led services to secure digital assets, smart contracts, and blockchain infrastructure.
Blockchain & Crypto Security

ICS and OT Penetration Testing Services

Assess vulnerabilities across industrial control systems and operational technology in critical environments.
ICS and OT Penetration Testing Services

Who We Support

Services are available to:

  • Government departments and critical infrastructure operators
  • Large enterprises across finance, defence, healthcare, and energy
  • International organisations requiring secure operations within Australia

Whether you manage confidential data or operate in a regulated sector, NSI Global provides tailored protection that meets your needs.

Offensive Security, Backed by Intelligence and TSCM

Contact NSI Global to scope an authorised offensive cyber assessment, including systems in scope, rules of engagement, testing windows, evidence-handling requirements and reporting objectives.

1300 000 NSI (674)

FAQs

What Is Offensive Cybersecurity?

Offensive cybersecurity involves proactively simulating cyber attacks to identify and exploit system vulnerabilities before malicious actors can. It strengthens an organisation’s digital defences through penetration testing and red team assessments.

How Does NSI Global Differ from Other Cybersecurity Firms in Australia?

NSI Global combines cyber and physical security expertise with operatives from military, intelligence, and law enforcement backgrounds. We use real-world adversarial tactics, giving clients a realistic view of their security posture.

Are Your Services Suitable for Both Corporate & Government Clients?

Yes. We work with high-security corporate environments and government departments, offering tailored offensive cyber assessments, compliance testing, and risk mitigation strategies.

What Are the Benefits of an Offensive Cyber Risk Assessment?

It helps you identify weak points in your systems, improve compliance, prepare for audits, and reduce the risk of data breaches and financial losses from cyber threats.

Is Offensive Cybersecurity Legal in Australia?

Yes, when the client has authority over the systems and provides written authorisation defining the scope, testing conditions and rules of engagement. Testing must remain within that authority.

Where Are Your Services Available?

Our services are available Australia wide, in the Asia-Pacific Region, and the Middle East.

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