Our Services

Defence Industry Security Program (DISP)

For businesses aspiring to enter or expand within the Australian Defence supply chain, DISP membership is non-negotiable. It is the security vetting process for an entire organization. We provide an end-to-end management service for the DISP application and compliance journey.

Become Defence-Ready: We navigate the entire process, from initial gap analysis to final submission, ensuring you meet the stringent requirements for Governance, Personnel Security, Physical Security, and Information & Cyber Security.

Unlock New Tenders: DISP membership provides Defence and foreign government entities with the confidence they need when procuring goods and services, making you a trusted and viable partner for high-value contracts.

Strategic Advantage: Our process, led by Defence sector veterans, doesn't just get you certified; it strengthens your entire security posture, providing you with a more secure operating environment long-term.

CMMC 2.0 & NIST Frameworks

For organizations engaging with the U.S. Department of Defense (DoD) supply chain, the Cybersecurity Maturity Model Certification (CMMC) 2.0 is a critical requirement. This framework is aligned with the globally respected standards developed by the National Institute of Standards and Technology (NIST).

Access the U.S. Defence Market: We guide you through the required CMMC 2.0 level—from Foundational to Expert—ensuring you can protect sensitive information and meet the DoD's stringent cybersecurity standards.

Adopt Global Best Practices: By aligning with NIST frameworks, we help you implement a mature, risk-based approach to cybersecurity that focuses on five core functions: Identify, Protect, Detect, Respond, and Recover.

Tax Practitioners Board (TPB) Professional Standards

For accounting and tax professionals, robust cybersecurity is no longer a best practice; it is a core professional obligation under the TPB's Code of Conduct. A failure to implement adequate controls to protect client data constitutes a breach of this code, placing your professional standing at risk. We implement and manage the complete suite of required controls; from multi-factor authentication to data encryption and backup, to provide a defensible and compliant security posture that protects your clients, your reputation, and your practice

ISO 27001: The Global Standard for Trust

ISO/IEC 27001 is the internationally recognized standard for Information Security Management Systems (ISMS). Achieving certification is the definitive statement that your organization is committed to the highest level of information security best practice.

Build a Competitive Edge: Certification demonstrates a powerful commitment to security, giving you a distinct advantage when dealing with clients and stakeholders who demand proof of data integrity.

Systematic Risk Management: We help you implement a comprehensive ISMS that covers policies, processes, and technology to systematically manage and mitigate information security risks.

Drive Continuous Improvement: Our approach embeds a culture of continuous security improvement, ensuring your ISMS evolves to meet the challenges of changing threats and vulnerabilities, keeping you compliant and secure.

ACSC Essential Eight

The Australian Cyber Security Centre's Essential Eight is the baseline for proactive cyber defence in Australia. We consider it the foundation of practical resilience.

A Pragmatic Mitigation Strategy: We implement the Essential Eight not as a checklist, but as a holistic strategy to protect your systems against the vast majority of cyber threats.

From Whitelisting to Backups: Our managed service ensures all eight controls—from Application Whitelisting and OS Patching to Multi-factor Authentication and Daily Backups—are expertly implemented and continuously managed.

Notifiable Data Breaches (NDB) Scheme

Under the Australian Privacy Act, professionals handling sensitive financial data have a legal duty to report data breaches to the OAIC and affected individuals. Our Managed Assurance services prepare you for this reality. We build and test your incident response plan so that in the event of a breach, you can manage the incident, meet your mandatory reporting obligations, and communicate effectively with your clients, preserving the trust you’ve worked so hard to build.

SMB1001: Scalable Cybersecurity Certification

Designed specifically for the needs and resources of small-to-medium businesses, the SMB1001 standard provides a flexible and affordable pathway to build and demonstrate strong cyber hygiene.

A Journey to Cyber Maturity: SMB1001 is a tiered certification that allows your business to progressively develop its security posture, from a foundational level to an advanced state of readiness.

Build Customer & Partner Confidence: Certification provides clear, third-party validation of your commitment to security, increasing trust with your customers and partners.

Achieve a Competitive Advantage: In a competitive market, being able to prove your cybersecurity posture can be a key differentiator, particularly when bidding for contracts with larger organizations.

PCI DSS: Securing Trust in Every Transaction

For any business handling card payments, the Payment Card Industry Data Security Standard (PCI DSS) is the global mandate for security and customer trust. Non-compliance carries severe financial and reputational risks.

Citadel IT transforms this complex requirement into a manageable business asset. We expertly scope your environment to minimize complexity, implement the required technical controls, and provide ongoing management to ensure you remain secure and compliant. We solve specific challenges, like enabling secure payments over the phone with our "Pause/Resume" Call Recording, turning your compliance posture into a clear demonstration of your commitment to security.

ASIC Regulatory Guide 261: Risk Management Systems

ASIC requires all Australian Financial Services Licence (AFSL) holders to treat cybersecurity as a critical operational risk. We align your technology and security policies directly with these regulatory expectations. Our framework provides the evidence to demonstrate to ASIC that you are proactively identifying, mitigating, and managing cyber risk across your entire organization, thereby protecting your clients, your data, and your license to operate.