Top cyber security threats small businesses face

Cybersecurity risk management for SMBs is more than just a buzzword—it’s a critical need in 2025. As technology advances, so do the tactics used by cybercriminals. Unfortunately, small and medium-sized businesses (SMBs) are often the easiest targets due to limited security resources and a false sense of safety. In this article, we’ll explore the top cyber threats SMBs face and practical steps to reduce risk.

Why cybercriminals target SMBs

Many SMBs believe they’re too small to attract cybercriminals. But this mindset is exactly what makes them vulnerable. Hackers know that SMBs often lack advanced cyber defences, making them low-hanging fruit. According to the Australian Cyber Security Centre, nearly half of all cybercrime reports come from small businesses.

Cybersecurity risk management for SMBs starts with recognising the scale of the problem—and knowing where the risks lie.

Phishing attacks: the most common entry point

Phishing remains one of the most widespread cyber threats. These attacks trick employees into clicking malicious links or sharing sensitive data. In many cases, attackers pose as trusted entities—like suppliers or banks—making their emails difficult to detect.

What to do:

  • Train staff to recognise phishing signs
  • Use email filtering tools
  • Implement two-factor authentication (2FA)

Ransomware: locking down your business

Ransomware attacks encrypt your files and demand payment for release. SMBs often pay the ransom, believing they have no other choice. However, paying does not guarantee data recovery.

Cybersecurity risk management for SMBs must include regular backups and incident response planning to reduce ransomware impact.

Mitigation tips:

  • Keep systems and software updated
  • Back up data frequently
  • Use endpoint protection tools

Weak passwords and poor access control

Many breaches occur due to weak or reused passwords. When employees use the same password across multiple accounts, one compromised login can lead to widespread damage.

Prevention strategies:

  • Enforce strong password policies
  • Use password managers
  • Apply role-based access controls

Outdated software and unpatched systems

Attackers exploit known vulnerabilities in outdated software to gain access to systems. Delaying updates can leave a business exposed for months.

Steps to take:

  • Enable automatic updates where possible
  • Monitor vendor announcements for patch releases
  • Conduct regular system audits

Lack of ongoing cyber security assessments

Without regular assessments, SMBs may not realise where their vulnerabilities lie. A cyber security assessment identifies gaps, prioritises threats, and sets a plan for improvement.

Insider threats and human error

Whether intentional or accidental, insider threats remain a major concern. An employee clicking a malicious link, misconfiguring a system, or leaking data can be just as damaging as an outside hacker.

What helps:

  • Regular staff training
  • Limiting access to sensitive data
  • Monitoring user behaviour for anomalies

Cloud vulnerabilities

More SMBs are using cloud platforms for storage and operations. While convenient, cloud systems introduce new risks, especially if misconfigured or poorly secured.

Protect your cloud setup by:

  • Enforcing strong cloud access controls
  • Encrypting sensitive data
  • Reviewing provider security policies

Strengthen your cyber security risk management today

Cybersecurity risk management doesn’t have to be overwhelming. With the right strategy, training, and support, you can reduce risk and safeguard your business from today’s most pressing threats.

Need help getting started? Explore our Cyber Security Assessments to identify vulnerabilities and take action.

Recent Insights

Download our Service Description

Download the 4walls Service Description to learn more about how we can help