Cyber Security · Australia & Beyond

Secure Today.
Safer Tomorrow.

End-to-end cyber security services for organisations across Australia and beyond. Strategy, assessment, implementation and managed services from a single partner, delivered by practitioners with 20+ years of hands-on experience.

20+
Years of practitioner experience
4
Core security disciplines covered
10+
Global regulatory frameworks supported
What we do

Four disciplines. One accountable partner.

We cover the full security lifecycle so you're not stitching together five different vendors, from strategy through to ongoing managed services.

Risk, Compliance & Governance

Enterprise risk assessments, governance frameworks and compliance programs built for board-level reporting and regulatory audits.

  • Threat modelling & analysis, third-party / vendor risk
  • Security governance & policy development, GRC advisory
  • ISO 27001, PCI-DSS & SOC 2 certification readiness
  • Privacy Act / PDPA / GDPR compliance, audit readiness & support

Penetration Testing & Vulnerability Management

Find the weaknesses before attackers do, whether as a one-off, periodic or ongoing managed program.

  • Vulnerability assessments & penetration testing
  • Secure code review & application security testing
  • Adversarial simulation / red teaming
  • Ongoing vulnerability management program

Application Security

Build security into the SDLC instead of bolting it on after production incidents.

  • AppSec program design & implementation
  • SAST / DAST / SCA testing
  • Secure SDLC & DevSecOps integration
  • API & web application security assessment

Infrastructure & Cloud Security

Modern network and cloud architecture that assumes breach and limits lateral movement, across on-prem and multi-cloud environments.

  • Cloud Security Posture Management (CSPM) across AWS, Azure & GCP
  • Zero Trust implementation, network security architecture design
  • Identity & privileged access management (IAM/PAM)
  • Security monitoring (SOC / SIEM), network segmentation & access controls
Regulatory & compliance

Frameworks that matter in Australia and globally

Whether you're navigating Australian obligations or working across APAC, we map your program to the frameworks that carry real weight with regulators and auditors.

Essential Eight ACSC, Australia
Privacy Act 1988 OAIC, Australia
APRA CPS 234 Financial services, AU
ISO 27001 Global
PCI-DSS Global
SOC 2 Global / US
NIST CSF Global
GDPR Europe
MAS TRM Singapore
PDPA Singapore / regional
Why Ostranix

What makes an engagement with us different

  • End-to-end coverage. Strategy, assessment, implementation and managed services, all under one accountable partner.
  • Practitioner-led, not box-ticking. 20+ years of hands-on offensive and defensive security experience across the team.
  • Global regulatory fluency. Deep familiarity with ISO 27001, PCI-DSS, SOC 2, and Australia's Essential Eight, APRA CPS 234 and Privacy Act.
  • Tailored, never cookie-cutter. Every engagement is scoped to your actual risk profile, systems and industry.
  • Measurable outcomes. Findings and progress reported in terms your board can act on, not just a PDF of vulnerabilities.
  • Certified specialists. Credentials across the team include CISSP, CISM, CISA, CEH, OSCP, CCSP, ISO 27001 Lead Auditor and PCI-DSS QSA.
Who we work with

Industries we serve

Government & Public Sector Banking & Financial Services Insurance & Capital Markets Fintech & Digital Payments Healthcare & Life Sciences Manufacturing & Technology Retail & Commercial Property
Straight answers

Common questions

"We already have an IT team."

IT and security are related but different disciplines. Your IT team focuses on availability and operations; security needs specialised offensive and defensive expertise plus regulatory knowledge. We complement your team rather than replace it.

"We're too small to be a target."

Attackers target organisations of every size. Smaller businesses are often preferred because defences are weaker, and if you handle customer data or process payments, you're already a target.

"We can't afford it right now."

The cost of a security program is consistently lower than the cost of a breach: investigation, regulatory fines, downtime and reputational damage. We can scope an engagement around your priorities and budget, starting with your highest risks.

"We tried a vendor before and it didn't work."

That's common, usually because the engagement was generic or delivered without follow-through. We start by understanding your business, deliver practical recommendations, and stay with you through implementation.

Get started

Ready to see where you actually stand?

Start with a focused gap assessment or penetration test to understand your highest-priority risks. No generic packages, just a plan scoped to you.