Small and medium businesses in Australia are targeted by cybercriminals at an alarming rate. Over 60% of cyberattacks in Australia target SMBs — precisely because criminals know smaller businesses typically have fewer defences, less staff, and limited cybersecurity expertise.
The good news: the most damaging attacks exploit predictable, fixable mistakes. Here are the five most common — and exactly how to close them.
Mistake 01: Relying on Passwords Alone
The Problem
Weak, reused, or compromised passwords are the leading cause of account breaches. A single employee reusing a password across personal and business accounts creates a direct entry point for attackers.
The Fix
Enable multi-factor authentication (MFA) on every business account — email, cloud storage, accounting software, remote access tools. This single step blocks over 99% of automated credential attacks.
Mistake 02: Treating Software Updates as Optional
The Problem
Unpatched software is one of the most exploited vulnerabilities in the world. Attackers actively scan for businesses running outdated versions of Windows, browsers, plugins, and network equipment.
The Fix
Automate operating system and application updates. Prioritise patching internet-facing systems and remote access tools within 48 hours of a critical security update being released.
Mistake 03: Using Basic Antivirus as a Complete Security Strategy
The Problem
Traditional antivirus catches known malware signatures but misses zero-day exploits, fileless attacks, ransomware, and targeted intrusions. It provides a dangerous false sense of security.
The Fix
Deploy endpoint detection and response (EDR) tools with behavioural analysis, and ensure 24/7 monitoring to detect threats that bypass automated defences.
Mistake 04: Leaving Remote Access Unsecured
The Problem
Remote Desktop Protocol (RDP) and VPNs without MFA are among the most common entry points for ransomware gangs. Attackers scan the internet for exposed RDP ports and brute-force credentials.
The Fix
Disable RDP if not in use. If remote access is required, place it behind a VPN with MFA enabled. Restrict access by IP address where possible and monitor login attempts continuously.
Mistake 05: Having No Incident Response Plan
The Problem
When an attack occurs — and statistically it will — businesses without a plan take far longer to contain and recover from incidents. Every hour of delay costs money and compounds damage.
The Fix
Develop a basic incident response plan that includes: who to call, how to isolate affected systems, where your backups are, and how to communicate with staff and customers. Test it at least annually.
How many of these apply to your business?
Book a free security assessment. We will identify your gaps and show you exactly how to close them — without jargon or sales pressure.
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