MDR for APRA-Regulated Financial Institutions

The threat landscape mid-market financial services can't outrun

Financial services sits inside the group of Australian critical infrastructure sectors attackers hit hardest, and the cost of getting caught out is rising faster for mid-market organisations than for anyone else.

Australia and New Zealand's financial regulators are responding with sharper expectations, not softer ones. Detection speed is no longer just a security metric. It's a regulatory clock.

What APRA (and the RBNZ) actually expect

Prudential Standard CPS 234 does not tell entities which tools to buy. It tells the board what it is accountable for, and it starts a clock the moment an incident is discovered.

CPS 234 — Information Security

An APRA-regulated entity must notify APRA as soon as possible, and no later than 72 hours, after becoming aware of an information security incident that materially affected, or had the potential to materially affect, the entity or its customers. A separate 10-business-day clock applies to a material control weakness the entity cannot remediate in a timely manner. Paragraph 13 places ultimate responsibility for information security with the Board itself, not a delegate.

Source: APRA Prudential Standard CPS 234, via Cybereen (cybereen.com) and the APRA Prudential Handbook (handbook.apra.gov.au)

CPS 230 — Operational Risk Management

CPS 230 layers on a critical operations framework and a 24-hour notification requirement for disruptions to critical operations that fall outside tolerance, separate from CPS 234's 72-hour information security clock. It also requires an annual register of material service providers, first due 1 October 2025.

Source: APRA CPS 230 summary, via Cliffside (cliffside.com.au)

New Zealand: the Reserve Bank's parallel expectation

Registered banks, non-bank deposit takers and insurers regulated by the Reserve Bank of New Zealand face an equivalent obligation under its Guidance on Cyber Resilience: material cyber incidents must be reported as soon as practicable, and in any case within 72 hours. New Zealand-regulated financial institutions carry the same detection-speed pressure as their APRA-regulated counterparts across the Tasman.

Source: Reserve Bank of New Zealand, Cyber resilience for regulated entities (rbnz.govt.nz)

APRA currently supervises institutions holding around $9.8 trillion in assets for Australian depositors, policyholders and superannuation fund members. That scale is exactly why APRA has said it will take stronger supervisory action, and pursue enforcement where appropriate, where entities fail to manage risk proportionate to their size and complexity.

Source: APRA, Who we are (apra.gov.au)

Why detection speed is the real gap

Sources: ASIC, media release 26-021MR (asic.gov.au); Cyber Daily (cyberdaily.au); BankInfoSecurity (bankinfosecurity.com)

What Insicon Cyber's MDR delivers

Our Adaptive SOC (aSOC) is a 24/7, Australian-based managed service. Insicon Cyber analysts run detection and response across the platforms best suited to your environment and complexity, backed by service levels that map directly onto APRA's expectations for board accountability and third-party assurance.

Service availability is targeted at a minimum of 99.9% uptime across all managed security services, with 24/7 support and proactive maintenance.

Backed by fractional CISOs who've sat in your seat

Insicon Cyber is an award-winning Australia and New Zealand cybersecurity partner, co-founded in 2013 and headquartered in North Sydney. The people who built the firm are still in the room.

Matt Miller, Co-Founder, CEO and Fractional CISO, has 25+ years across NASDAQ and ASX listed organisations, is an ISO 27001 Senior Lead Auditor, and was Head of Technology for the asset finance division of a leading Australian regional bank — financial services governance from the inside, not just the outside.

Greg Bunt, Co-Founder, Director and Fractional CISO, has 25+ years in security, risk and enterprise architecture across Australia and Asia-Pacific, holds an Australian Government Baseline Security Clearance, and has delivered large-scale programmes in banking, finance and telecommunications.