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As a defence-focused management and security consultancy, we can support your business with a range of security services to help you not only meet the requirements of working with Defence, but protect your business from external threats.

Before you read more about our security services, we feel it's important to share with you what sets us apart from other security and defence-focused consultancies, and what you get when you engage our team to support you:

  • Our team has over 150 years of combined Defence and defence industry experience working in Defence Primes, Managing Contractors and SMEs, so we understand the space and what's required. We offer expertise across Air, Land, Sea, Space, Cyber and Defence Estate & Infrastructure, so when we refer to ourselves as Defence and Security Experts, we're not joking.

  • We are a DISP member with security cleared staff. Having been through the process ourselves, as well as being involved in planning the rollout of the new program to industry with the Defence Security & Vetting Service (DS&VS) throughout 2018 and 2019, there's nothing we don't know about the program.

  • On the occasion that we require additional resources to support you with your project, we have a national network of ICT / Cyber Security partners and SCEC consultants. These are vetted, trusted partners that align with our own values, ethics, and morals.

  • Lastly, and most importantly, we take the time to get to know you, and your business. You will receive genuinely tailored support that meets your needs.

Security services

Membership Attainment


The Defence Industry Security Program (DISP) exists to protect the integrity of Australia's Defence capability. Whilst membership is not yet mandatory, it is highly recommended that those wanting to supply to the defence sector obtain a DISP membership.

With an unrivalled understanding of the program, our team are well-positioned to support your business in obtaining DISP membership.

Learn more.

Ongoing Compliance Assurance (OCA™)


There are a variety of continuing obligations that need to be fulfilled in order to maintain compliance once you attain your DISP membership.


Our Ongoing Compliance Assurance (OCA™) Program offers structured, ongoing support, meaning a reduced burden on internal staff capacity, a minimisation of the costs associated with Defence security audits/assurance activities, and most of all, peace of mind.

Learn more.

Cyber Security

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De Stefano & Co offer a range of cyber security services to help your organisation operate your technology environment safely and securely, providing peace of mind for you, your customers and your employees, whilst also complying with any contractual and regulatory security obligations you have.

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If you are developing, operating, or providing a system for the Australian government or its agencies, we can help.

From IRAP/ISM gap analysis, to the preparation of system-specific security documentation and independent assessments of your system or service, our team can support the design and development phase of these systems, to help you "bake in" security from the beginning of the process.

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A globally recognised standard for Information Security Management Systems (ISMS), ISO27001 provides a framework of policies, procedures and controls to help organisations protect their information assets from various threats and risks.


Our experienced team can support organisations with ISO27001 gap analysis, implementation, maintenance, and ongoing support.


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Essential Eight

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The Essential Eight is a cyber security framework comprised of eight mitigation strategies developed by the Australian Cyber Security Centre (ACSC), to help organisations mitigate the risk of cyber attack.


Our experienced team can work with you to increase your cyber maturity levels, reducing your risk of cyber attacks and protecting your most valuable assets.

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Not only are we experienced in running webinars and workshops, we can provide tailored training packages for your team.


Types of training include:

  • Defence Security Compliance

  • Operational Security

  • Security Zones and Principles

  • Construction Security Planning

  • Zone Operations

  • Insider Threat

  • Supply Chain Security

  • Essential Eight Maturity

  • Security Risk Assessments and Security Incident Reporting

Get in touch to discuss your needs.


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As we all know, the strength of any business lies in the quality of its people. 


Our Personnel Security services will ensure that you have the correct policies and systems in place to support your workforce as it grows.


Services include:

  • Induction programs

  • Workforce screening policies

  • Staff briefings and debriefings

  • Security clearances, from initial sponsorship and application support, through to maintenance and support in meeting ongoing clearance holder responsibilities 

Get in touch to discuss your needs.

Security Uplift

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If you have the requirement for security classified information or assets to be used, transmitted, stored or discussed within your organisation, you will need an area that is certified and accredited.


We have a team of experts with extensive backgrounds in this area, including complex physical security design, certification, accreditation and ongoing operational compliance support.

Learn more.

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