Why Regular Attack Surface Scans Are Essential for Australian Businesses

What Is an Attack Surface Scan?

An attack surface scan is an automated security assessment that maps every digital asset visible from the internet — websites, servers, email systems, subdomains, open ports, and cloud services. It shows you exactly what a cybercriminal would see if they targeted your business.

For Australian businesses, this is particularly important because the Australian Cyber Security Centre (ACSC) reports that cybercrime costs Australian businesses over $33 billion annually, with small and medium businesses being the most frequent targets.

Why Does Your Attack Surface Change?

Your external attack surface is not static. It shifts every time your organisation:

• Launches a new website or subdomain
• Migrates services to cloud platforms like AWS, Azure, or Google Cloud
• Updates or patches software on public-facing servers
• Adds new email domains or changes DNS records
• Onboards third-party SaaS tools that connect to your infrastructure
• Opens remote access services like RDP or VPN for staff

Each of these changes can introduce new vulnerabilities. A single misconfigured server or forgotten subdomain can give attackers a foothold into your network.

How Often Should Australian Businesses Scan?

The Australian Signals Directorate (ASD) recommends continuous monitoring of external-facing assets as part of the Essential Eight maturity model. At minimum, businesses should scan:

• Monthly for small businesses with simple infrastructure
• Weekly for medium businesses with cloud services and multiple domains
• Daily for enterprises handling sensitive data or operating in regulated industries

The reality is that most Australian SMBs have never performed an external attack surface scan. According to the ACSC's Annual Cyber Threat Report, 76% of Australian small businesses lack basic cybersecurity measures.

What Does a Typical Scan Reveal?

When Affinity MSP scans an Australian business for the first time, we commonly discover:

• Open ports that should be firewalled (RDP on port 3389, database servers on port 1433 or 3306)
• Expired or misconfigured SSL certificates that expose data in transit
• Missing email authentication (SPF, DKIM, DMARC) that enables email spoofing
• Outdated software with known CVE vulnerabilities on web servers
• Forgotten subdomains pointing to decommissioned servers or development environments
• Exposed admin panels accessible without VPN or IP restrictions

The average Australian business scanned through our portal has 14 security findings that require attention.

The Cost of Not Scanning

The Notifiable Data Breaches scheme under the Australian Privacy Act 1988 requires businesses to report data breaches that are likely to result in serious harm. Penalties for failing to protect customer data can reach $50 million under the Privacy Legislation Amendment Act 2022.

Beyond regulatory fines, a security breach costs Australian businesses an average of $4.03 million per incident according to IBM's Cost of a Data Breach Report. For small businesses, a breach can mean closure — 60% of Australian SMBs that suffer a significant cyber attack go out of business within six months.

How to Get Started

Affinity MSP offers a free, instant attack surface scan for Australian businesses. The scan takes approximately 60 seconds and checks your external infrastructure for vulnerabilities, exposed services, open ports, email security configuration, and SSL certificate issues.

No software installation is required. Simply enter your business website URL and email address, and receive a comprehensive security report within minutes.

Run your free attack surface scan now to find out what cybercriminals can see about your business.