CTS - Computer Technology Specialists
Cybersecurity Upgrade Melbourne Accounting
A Melbourne accounting practice engaged CTS to upgrade its cybersecurity after a wave of tax-season phishing made clear that password-only access and default antivirus were no longer enough. The practice handled sensitive financial data for hundreds of clients and needed both stronger protection and the compliance evidence its clients and insurer were starting to ask for. CTS deployed MFA, managed endpoint detection and response, advanced email security, and produced documented evidence of the practice's security posture.
Melbourne IT support with visible local credentials
CTS - Computer Technology Specialists has supported Melbourne SMBs since 2000. Contact: 1300 790 780, hello@cts.au, L30 - 35 Collins St Melbourne 3000.
Certifications, affiliations and technology partners
Microsoft Partner, ACSC Essential Eight aligned, ISO 27001 practices, NBN Business Accredited Adviser, Cisco Partner, Dell Partner, HPE Partner, Arcserve Partner, Broadcom Partner, Kyocera Partner.
The challenge
Accounting practices are a prime target for fraud and phishing, particularly during tax season, and this practice's defences had not kept pace.
- Accounts were protected by passwords alone, with no multi-factor authentication
- Endpoints relied on default antivirus with no managed detection or response
- Phishing and invoice-fraud attempts spiked during tax season
- There was no documented evidence of security controls for clients or insurers
- Sensitive client financial data was exposed to credential theft
The CTS solution
CTS layered modern identity, endpoint and email defences over the practice and documented the result.
- Enforced MFA and conditional access on every account through Entra ID
- Deployed managed EDR through Microsoft Defender for Business with active monitoring
- Implemented Microsoft Defender for Office 365 for advanced email and phishing protection
- Established automated patch management across endpoints
- Delivered security awareness guidance focused on invoice and payment fraud
Compliance evidence
Stronger controls are only half the story — the practice also needed to prove them.
- A documented control register describing the practice's security posture
- An evidence pack supporting cyber-insurance and client due-diligence requests
- Clear documentation of MFA, EDR and email security coverage
The results
The practice moved from password-only access to a monitored, layered security posture with documented proof.
- MFA coverage raised to 100% of accounts
- Managed EDR providing active detection and response across endpoints
- Advanced email security materially reducing phishing and fraud exposure
- Documented compliance evidence ready for insurers and clients
- A security posture appropriate to a custodian of sensitive financial data
Technologies deployed
Microsoft Entra ID (conditional access and MFA), Microsoft Defender for Business (managed EDR), Microsoft Defender for Office 365, and Microsoft Intune for patch management.
Frequently asked questions
Why does an accounting practice need more than antivirus?
Default antivirus only catches known threats on the device. Accounting practices face targeted phishing, credential theft and invoice fraud — especially at tax time — which require MFA to stop stolen passwords being used, managed EDR to detect and respond to active threats, and advanced email filtering to block phishing before it reaches staff.
What is managed EDR?
Managed endpoint detection and response goes beyond traditional antivirus by continuously monitoring endpoints for suspicious behaviour, detecting active threats, and enabling rapid response. CTS deployed it through Microsoft Defender for Business with ongoing monitoring rather than leaving it to run unattended.
Can you provide evidence of our security for clients and insurers?
Yes. CTS produced a documented control register and evidence pack describing the practice's MFA, EDR and email security coverage, which it can present to satisfy cyber-insurance questionnaires and client due-diligence requests.