As compliance requirements tighten globally, Australia has taken a decisive step with the introduction of Prudential Standard CPS 234 Information Security, setting a clear baseline for how financial institutions must protect themselves and the people who trust them.<\/p>\n\n\n\n
Australia’s financial services sector remains one of the most targeted in the world, with high-profile breaches exposing millions of records. According to the Australian Cyber Security Centre’s Annual Cyber Threat Report<\/a> 2024\u20132025, more than 1,200<\/strong> cybersecurity incidents were responded to last year (an 11% increase year-on-year), alongside over 84,700<\/strong> cybercrimes reported, i.e., 1 every 6 minutes.<\/p>\n\n\n\n For APRA-regulated entities, CPS 234 is the framework standing between your organization and the kind of incident that ends up in a headline.<\/p>\n\n\n\n This blog breaks down exactly what are CPS 234 requirements, the practical steps to get, and the concrete strategies that will meaningfully strengthen your security posture for CPS 234 compliance.<\/p>\n\n\n\n CPS 234 <\/a>is a prudential standard issued by the Australian Prudential Regulation Authority that sets mandatory security standards for all APRA-regulated entities(Australian financial institutions). <\/p>\n\n\n\n It\u2019s one of the most comprehensive frameworks applied to the Australian financial services sector. This was developed in response to modern threats faced by financial institutions globally. <\/p>\n\n\n\n Unlike broad voluntary frameworks, CPS 234 requirements places legally binding responsibilities on boards, senior management, and third-party service providers. Non-compliance can attract regulatory intervention, enforceable undertakings, and reputational damage.<\/p>\n\n\n\n CPS 234 applies to all entities regulated by APRA, including\u200b<\/p>\n\n\n\n For foreign entities, obligations apply only to Australian branch operations. Where an entity is the Head of a Group (Level 2 or Level 3), requirements extend group-wide, including non-APRA-regulated subsidiaries. <\/p>\n\n\n\n \u200bThe reach of the standard extends beyond the entity itself. If a vendor manages your information assets, CPS 234 obligations apply from contract renewal or 1 July 2020 onward.<\/p>\n\n\n\n This makes third-party & supply chain securit<\/a>y requirements a central focus of CPS 234 Compliance. <\/p>\n\n\n\n \u200bEntities that rely heavily on third parties for technology and data management must ensure those arrangements are structured to satisfy CPS 234’s requirements.<\/p>\n\n\n\n Example scenarios<\/strong><\/p>\n\n\n\n \u201c<\/em>CPS 234 Para 6<\/em><\/strong>: Where an APRA-regulated entity\u2019s information assets are managed by a third party, the requirements in this Prudential Standard will apply in relation to those information assets from the earlier of the next renewal date of the contract with the third party or 1 July 2020.\u201d<\/em><\/p>\n\n<\/div>\n\n\n Note<\/strong>: Entities that are not authorised or registered by APRA (e.g. fintech startups, non-bank buy-now-pay-later providers, or purely self-managed retirement accounts) are generally not subject to CPS 234. However, if they provide material services to an APRA-regulated entity, the regulated entity will impose security obligations through contractual and oversight mechanisms.<\/p>\n\n\n\n CPS 234 requirements is organised around four core pillars, each addressing a distinct dimension of information security governance:<\/p>\n\n\n\n Under paragraph 15 <\/a>of CPS 234 requirements, entities must maintain an information security capability<\/strong> (people, processes, technology, and controls) proportionate to the size and extent of threats to information assets. This must evolve as the threat environment changes.<\/p>\n\n\n \u201cCPS 234 Para 17<\/strong>: An APRA-regulated entity must maintain an information security capability commensurate with the size and extent of threats to its information assets, and which enables the continued sound operation of the entity\u201d<\/em><\/p>\n\n<\/div>\n\n\n \u200bIn practical terms, this means entities must invest continuously in people, processes, and technology to protect their information assets. APRA expects that capability assessments are conducted regularly and that any identified gaps are remediated on a risk-prioritised basis.<\/p>\n\n\n\n \u200bKey elements of an information security capability include:<\/p>\n\n\n\n Entities must also be able to demonstrate to APRA that their capability is adequate.<\/p>\n\n\n\n This requires maintaining evidence of assessments, training records, test results, and remediation logs. A capability that exists only on paper will not satisfy the standard.<\/p>\n\n\n\n \u200bPro Tip:<\/strong> Form a cross-functional information security team and maintain a cyber risk register with key risk indicators (KRIs). Regularly assess whether current controls can handle plausible worst-case scenarios (e.g., ransomware attacks or insider threats).<\/p>\n\n\n\n CPS 234 requirements asks regulated entities to classify their information assets, including those managed by third parties, based on their criticality and sensitivity. This classification determines the level of control required and the priority of protection.<\/p>\n\n\n\n \u200bAn information asset under CPS 234 is broadly defined and includes data, hardware, software, systems, and any other resource that holds or processes information. Entities must maintain an up-to-date register of these assets, clearly identifying who is responsible for each asset and the classification that applies.<\/p>\n\n\n \u201cCPS 234 Para <\/strong><\/em>20<\/em><\/strong>: An APRA-regulated entity must classify its information assets, including those managed by related parties and third parties, by criticality and sensitivity\u2026..\u201d<\/em><\/p>\n\n<\/div>\n\n\n \u200bA simple CPS 234 classification framework that can be used:<\/p>\n\n\n\n CPS 234 requirements asks controls to be implemented in a timely manner and that their effectiveness be tested regularly at least annually, or following significant changes.<\/p>\n\n\n\n Controls must be proportionate to the classification of the asset. Critical assets demand stronger, more rigorous controls. The standard does not prescribe specific technical controls, giving entities flexibility to choose solutions appropriate to their operating model, but it does require entities to justify their control choices.<\/p>\n\n\n\n Control effectiveness testing under CPS 234 requirements includes:<\/p>\n\n\n\n \u201cCPS 234 Para 31<\/strong>: An APRA-regulated entity must review the sufficiency of the testing program at least annually or when there is a material change to information assets or the business environment.\u201d<\/em><\/p>\n\n<\/div>\n\n\n Where testing reveals gaps, entities must establish a remediation plan and track progress. APRA expects timely remediation and has been known to escalate regulatory attention where systemic gaps persist without adequate remediation.<\/p>\n\n\n\n Your security is only as strong as the weakest link in your supply chain. And in today’s outsourced, cloud-dependent operating environment, your supply chain is long.<\/p>\n\n\n\n Under para 16, CPS 234 explicit that obligations do not diminish simply because information assets are managed by a third party. Regulated entities remain responsible for ensuring that their service providers ( including cloud providers, outsourced IT operations, and data processors) maintain information security capabilities consistent with the standard.<\/p>\n\n\n\n \u200bThis creates a significant due diligence and ongoing monitoring obligation. Before engaging a third party to manage information assets, entities must assess the provider’s security posture.<\/p>\n\n\n\n After engagement, they must monitor it continuously.\u200b<\/p>\n\n\n\n Practical requirements for third-party security under CPS 234 include:<\/p>\n\n\n\n Entities that have concentrated their operations in a small number of critical service providers face heightened supply chain risk. APRA expects concentration risk to be identified, documented, and managed.<\/p>\n\n\n\n Pro Tip: <\/strong>Ask yourself: If your primary cloud provider suffered a major outage tomorrow, could you maintain critical operations? If the answer is ‘no’ or ‘we’d figure it out,’ you have a CPS 234 issue.<\/em><\/p>\n\n\n\n CPS 234 requires regulated entities to have a strong information security incident management capability. This encompasses the ability to detect, contain, eradicate, and recover from incidents.<\/p>\n\n\n\n Incident response plans must be documented, regularly tested (including tabletop exercises), and updated to reflect changes in the threat environment and the entity’s operating model.<\/p>\n\n\n \u201cCPS 234 Para <\/strong><\/em>23<\/em><\/strong>: An APRA-regulated entity must have robust mechanisms in place to detect and respond to information security incidents in a timely manner.\u201d<\/em><\/p>\n\n<\/div>\n\n\n One of the most operationally significant CPS 234 reporting requirements is the mandatory notification obligation. Regulated entities must notify APRA:<\/p>\n\n\n\n \u201cCPS 234 Para 35, 36<\/strong>: An APRA-regulated entity must notify APRA as soon as possible and, in any case, no later than 72 hours\u2026\u2026\u201d<\/em><\/p>\n\n<\/div>\n\n\n The 72-hour window for incident notification is tight, particularly for complex incidents where the full scope may not yet be understood. Entities must have clear escalation processes that ensure the right people are informed and can make a notification decision quickly. Delayed notifications are a significant compliance risk and have been the subject of APRA enforcement actions.<\/p>\n\n\n\n In addition to APRA, entities may have parallel notification obligations under the Notifiable Data Breaches (NDB) scheme administered by the Office of the Australian Information Commissioner (OAIC) where personal information is involved.<\/p>\n\n\n\n CPS 234 requirements places explicit accountability at the top of the organisation. The board of a regulated entity is ultimately responsible for ensuring that the entity maintains adequate information security.<\/p>\n\n\n\n Board responsibilities under CPS 234 para 13, 14 include:<\/p>\n\n\n\n Senior management bears responsibility for implementing the board’s directions and for the day-to-day management of information security risks. This typically includes the Chief Information Security Officer (CISO), Chief Risk Officer (CRO), and other executives whose functions involve information assets.<\/p>\n\n\n\n APRA has increasingly scrutinised the quality of board information security reporting.<\/p>\n\n\n\n Use the following checklist to assess your organisation’s current CPS 234 compliance posture:<\/p>\n\n\n\n APRA conducts regular prudential reviews and targeted thematic assessments of CPS 234 compliance. Being well-prepared is essential to demonstrating a mature information security posture and avoiding adverse regulatory findings.<\/p>\n\n\n\n Before the Assessment<\/p>\n\n\n\n During the Assessment<\/p>\n\n\n\n After the Assessment<\/p>\n\n\n\n CPS 234’s control testing requirements, i.e., annual penetration testing for web applications and services<\/a>, vulnerability assessments, and ongoing monitoring, are among the most resource-intensive obligations in the standard.<\/p>\n\n\n\n For entities without large in-house security teams, keeping up with the required cadence is genuinely difficult.<\/p>\n\n\n\n Astra Security’s Pentest platform is built specifically to address this problem. We combine AI-powered automated scanning with certified manual penetration testers (OSCP, CEH, eJPT qualified) to deliver the depth of assessment that CPS 234’s risk-based approach demands, without requiring you to manage a full in-house team.<\/p>\n\n\n\n What that looks like in practice:<\/p>\n\n\n\n Solving the Third-Party Security Problem with Astra Trust Center<\/strong><\/p>\n\n\n\n You’re a regulated entity. You rely on technology vendors, cloud providers, and outsourced service providers. CPS 234 requires you to assess and monitor their security posture continuously. But you’re also somebody else’s vendor.<\/p>\n\n\n\n That creates a two-sided problem. On one side, you’re chasing your vendors for security evidence. On the other hand, your clients are chasing you.<\/p>\n\n\n\n It’s a significant operational burden on both sides, and it still leaves everyone relying on static, point-in-time documents that are out of date almost as soon as they’re produced.<\/p>\n\n\n\n Astra’s Trust Center<\/a> can solve this problem.<\/p>\n\n\n\n A Trust Center is a publicly accessible, continuously updated security posture page that your vendors, clients, and regulators can access at any time.<\/p>\n\n\n\n CPS 234, at its core, asks for the same thing every other serious compliance framework asks: prove it. Prove your controls work. Prove your board is engaged. Prove your vendors meet the standard. Prove you can detect and respond to an incident. Prove you’d notify APRA in a timely manner.<\/p>\n\n\n\n The organisations that find compliance genuinely manageable are those that stop treating each framework as a separate exercise and start building a security operating model that satisfies all of them simultaneously. The implication is worth sitting with.<\/p>\n\n\n\n If your organisation operates across multiple compliance obligations, a mature penetration testing program simultaneously produces evidence for your ISO 27001<\/a> audit, feeds your SOC 2<\/a> security criteria, and supports your cyber insurance renewal. It’s the rare compliance investment that compounds each test cycle, generating value across multiple frameworks at once.<\/p>\n","protected":false},"excerpt":{"rendered":" TLDR; As compliance requirements tighten globally, Australia has taken a decisive step with the introduction of Prudential Standard CPS 234 Information Security, setting a clear baseline for how financial institutions must protect themselves and the people who trust them. Australia’s financial services sector remains one of the most targeted in the world, with high-profile breaches … Read more<\/a><\/p>\n","protected":false},"author":138,"featured_media":46153,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[696],"tags":[],"class_list":["post-46145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-compliance"],"_links":{"self":[{"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/posts\/46145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/users\/138"}],"replies":[{"embeddable":true,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/comments?post=46145"}],"version-history":[{"count":7,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/posts\/46145\/revisions"}],"predecessor-version":[{"id":47252,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/posts\/46145\/revisions\/47252"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/media\/46153"}],"wp:attachment":[{"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/media?parent=46145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/categories?post=46145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.getastra.com\/blog\/wp-json\/wp\/v2\/tags?post=46145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/span>What is CPS 234?<\/span><\/h2>\n\n\n\n
![\"CPS](\"\/cdn-cgi\/image\/quality=80,format=auto,onerror=redirect,metadata=none\/https:\/\/cdn-blog.getastra.com\/2026\/03\/bcf1e5e9-image.png\")
<\/figure>\n\n\n\n<\/span>Who Must Comply with CPS 234?<\/span><\/h2>\n\n\n\n
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<\/span>What are the CPS234 Requirements?<\/span><\/h2>\n\n\n\n
![\"Pillars](\"\/cdn-cgi\/image\/quality=80,format=auto,onerror=redirect,metadata=none\/https:\/\/cdn-blog.getastra.com\/2026\/03\/30de2bfb-image.png\")
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<\/span>What are the Information Security Capability Requirements?<\/span><\/h2>\n\n\n\n
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<\/span>Asset Identification & Classification Obligations in CPS 234<\/span><\/h2>\n\n\n\n
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<\/span>\u200bWhat Does Effective Control Testing and Implementation Look Like?<\/span><\/h2>\n\n\n\n
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<\/span>Third-Party & Supply Chain Security Requirements<\/span><\/h2>\n\n\n\n
![\"Astra](\"\/cdn-cgi\/image\/quality=80,format=auto,onerror=redirect,metadata=none\/https:\/\/cdn-blog.getastra.com\/2026\/03\/de2492c8-image.png\")
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<\/span>Incident Management and Notification Obligations in ARPA 234<\/span><\/h2>\n\n\n\n
CPS 234 Notification Requirements<\/h3>\n\n\n\n
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<\/span>What Boards Are Actually Expected to Do under CPS 234<\/span><\/h2>\n\n\n\n
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<\/span>CPS 234 Compliance Checklist<\/span><\/h2>\n\n\n\n
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<\/span>How to Prepare for a CPS 234 Audit or Assessment<\/span><\/h2>\n\n\n\n
![\"\"](\"\/cdn-cgi\/image\/quality=80,format=auto,onerror=redirect,metadata=none\/https:\/\/cdn-blog.getastra.com\/2026\/03\/4be9c74a-image.png\")
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<\/span>How Astra Security Helps You Meet CPS 234 Requirements<\/span><\/h2>\n\n\n\n
![\"\"](\"\/cdn-cgi\/image\/quality=80,format=auto,onerror=redirect,metadata=none\/https:\/\/cdn-blog.getastra.com\/2026\/03\/9b84f967-image.png\")
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![\"Astra](\"\/cdn-cgi\/image\/quality=80,format=auto,onerror=redirect,metadata=none\/https:\/\/cdn-blog.getastra.com\/2026\/03\/a04bbc83-image.png\")
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<\/span>Final Thoughts<\/span><\/h2>\n\n\n\n