Case Study:Essential Eight Compliance: Fortifying a Mid-Sized Financial Services Firm Against Online Threats
RedflexCorp mid‑sized financial services firm needed to uplift its cyber security posture to keep pace with evolving threats and regulatory expectations. By aligning with the ACSC Essential Eight and modernising its Microsoft 365 environment, the firm significantly reduced cyber risk and strengthened its overall resilience against online attacks.
Client overview
The client is a member‑based financial services firm providing investment and advisory services to customers across Australia. Staff work across front‑office, operations, risk, and compliance functions, all of which rely heavily on access to sensitive financial and personal information. The firm had already adopted Microsoft 365, but its security capabilities and governance settings were not fully configured or consistently applied. Leadership recognised that the organisation needed a structured, measurable approach to uplift cyber security and demonstrate “reasonable steps” under Australian regulations.
Challenges
The existing security controls were a patchwork of legacy settings, point solutions, and manual processes, making it difficult to gain a clear picture of the firm’s overall risk profile. Patch management was inconsistent, multi‑factor authentication was not enforced everywhere, and some legacy applications and endpoints created gaps attackers could exploit. Backup and recovery processes were in place but not regularly tested, raising concerns about the firm’s ability to recover quickly from ransomware or data loss incidents. Regulators, partners, and insurers were increasingly asking for evidence of robust cyber security controls, putting pressure on the firm to uplift its maturity in a structured, auditable way.
Our solution
We began with a detailed Essential Eight maturity assessment to understand the firm’s current posture across application control, patching, macro controls, user application hardening, administrative privileges, multi‑factor authentication, application hardening, and backups. Working with internal IT, security, and risk stakeholders, we designed a practical roadmap to move from low maturity towards the target level across all eight controls, prioritising quick wins that delivered meaningful risk reduction. Key initiatives included enforcing multi‑factor authentication across all users and privileged accounts, tightening patch management processes, uplifting endpoint protection, hardening Microsoft 365 security settings, and implementing robust, regularly tested backup and recovery procedures. Throughout the engagement, we aligned technical changes with policies, training, and communication to ensure staff understood new controls and how to work effectively within them.
Client experience
As the uplift progressed, staff experienced clearer, more consistent security practices, such as standardised sign‑in, MFA prompts, and fewer outdated or unsupported tools. The IT and security teams gained better visibility into vulnerabilities, configuration drift, and incident trends, allowing them to respond more quickly and proactively. Risk and compliance stakeholders were engaged through regular reporting and workshops that translated technical progress into business‑level risk reduction and compliance outcomes. The firm appreciated that the Essential Eight roadmap provided a structured, step‑by‑step path rather than a disruptive “big bang” change.
Owner | RedflexCorp
Outcomes
By implementing the Essential Eight uplift and strengthening Microsoft 365 governance, the firm significantly reduced its exposure to common cyber threats such as ransomware, phishing, and credential theft. Security controls became more consistent and measurable, enabling the organisation to demonstrate stronger compliance with the Privacy Act, APRA guidance, and cyber insurance requirements. Regular backup testing and improved recovery processes gave the business greater confidence in its ability to withstand and recover from incidents. Overall, the firm emerged with a more mature, resilient security posture that supports ongoing digital transformation while protecting customer data and brand reputation.