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About
OscarTango

OscarTango is a specialist cybersecurity firm based in Abu Dhabi, focused on operational technology, critical infrastructure and adversarial security.

Security for systems
that keep operating

We help organisations understand, test and improve the security of the systems on which real-world operations depend — from industrial environments and transport systems to energy, resources and other critical infrastructure.

OscarTango was founded on a simple principle: complex operational environments require cybersecurity practitioners who understand both how systems are designed to operate and how adversaries attempt to compromise them.

Our work combines deep technical security expertise with practical experience across complex, safety-critical and highly regulated environments.

Specialist, Not Generalist
We work in a defined domain: operational technology, industrial control systems and critical infrastructure, and the adversarial testing of the systems that connect to them, AI-enabled systems included. The field is narrow by choice, and the expertise goes deep because of it.
Founder-Led Delivery
Engagements are led and delivered by senior practitioners. Clients deal directly with the person accountable for the technical outcome, and the scope is set by what the environment actually needs.
Independent by Design
We do not build, integrate or operate the systems we assess, and we are not a reseller for anyone else's products. That separation is the basis of the assurance we provide.
Regionally Grounded
Based in Abu Dhabi and working across the UAE and wider GCC, with working knowledge of both regional regulatory expectations and international OT standards.

Leadership

OscarTango is founder-led. The experience behind the company is set out plainly below.

Aaron Fenwick

Aaron Fenwick

Founder & Principal Consultant

  • 20+ years in cybersecurity
  • Former Cybersecurity Partner, EY Middle East
  • Former Cybersecurity Partner, PwC Australia
  • Abu Dhabi, United Arab Emirates
LinkedIn profile

Aaron is a cybersecurity leader and technical practitioner with more than two decades of experience across cybersecurity, offensive security and operational technology.

Prior to founding OscarTango, Aaron was a Cybersecurity Partner with EY in the Middle East, where he led MENA Offensive Security, and previously a Cybersecurity Partner with PwC Australia, where he led capabilities across OT cybersecurity and offensive security.

His experience spans critical infrastructure, rail and transport, aviation, energy, oil & gas, mining, autonomous vehicles and other complex operational environments. That work has included OT/ICS cybersecurity, cyber-physical security assessments, adversary-led testing, architecture and security reviews, incident response, security assurance and strategic advisory.

Certifications & Training

OSCE OSCP CISSP CISA Corelan Win32 Exploit Development Bootcamp Corelan Win32 Advanced Exploit Development SANS SEC564

Practical constraints,
taken seriously

01

Safety and Availability First

Production safety, process integrity and availability take precedence over test coverage. Scope, technique and timing are agreed with the engineers who own the systems, around maintenance windows, change control and commissioning, and we say plainly when something should not be attempted against a live system.

02

Standards Literacy

Work is grounded in the frameworks our clients are measured against — IEC/ISA 62443, NIST SP 800-82, NCA OTCC and NERC CIP among them — alongside UAE regulatory expectations. Frameworks inform the work; they do not replace technical judgement.

03

Findings You Can Act On

Reporting is written for the people who have to do something with it: engineering teams that need reproducible technical detail, and executives and regulators who need a clear statement of exposure and priority.

Discuss a requirement

If you have an environment, a project or a programme that needs specialist attention, we are happy to talk it through before any commitment.