Cybersecurity Basics for Small Businesses

Cybercriminals often use automated tools to scan for vulnerabilities across thousands of businesses. They are looking for weak passwords, outdated software and unprotected systems. 

Common cyber threats include: 

• Phishing emails  

• Ransomware attacks  

• Password theft  

• Malware  

• Business email scams  

According to the Australian Cyber Security Centre (ACSC), small businesses remain a common target for cybercrime due to limited cybersecurity resources. 

Phishing Emails 

Phishing emails are designed to trick people into clicking malicious links, downloading infected files or sharing login details. 

Examples include: 

• Fake invoices  

• Delivery notifications  

• Bank alerts  

• Account verification requests  

Ransomware 

Ransomware locks your files or systems and demands payment to restore access. Without backups, recovery can be costly and disruptive. 

Weak Passwords 

Using simple or reused passwords makes it easier for attackers to gain access to business accounts. 

Unsafe Wi-Fi Networks 

Outdated routers, default passwords and poor security settings can leave your network vulnerable. Regularly update your equipment and review your settings using Yomojo's nbn® modem guide. 

Use Strong Passwords 

Create unique passwords for every account and consider using a password manager to store them securely. 

Enable Multi-Factor Authentication (MFA) 

MFA adds an extra layer of security by requiring a second verification step when logging in. 

Keep Software Updated 

Install updates promptly on computers, phones, routers and business software to reduce security risks. 

Back Up Your Data 

Use both cloud and offline backups to protect important business information from ransomware or system failures. 

Train Your Team 

Employees should know how to recognise phishing emails, suspicious links and common online scams. 

Secure Your Business Network 

Your internet connection plays an important role in protecting your business. Secure routers, Wi-Fi encryption, firewall protection and updated firmware all help reduce cyber risks. 

A reliable business nbn® service can support secure communications, cloud applications and business continuity. 

For businesses reviewing their network setup, Yomojo's nbn modem guide provides useful information. 

• Use MFA  

• Secure home Wi-Fi networks  

• Keep devices updated  

• Use VPNs when accessing business systems remotely  

Businesses using remote access solutions may also find this guide helpful: Static vs Dynamic IP. 

VoIP systems rely on secure internet connections. Businesses should use strong passwords, enable MFA where available and monitor accounts for suspicious activity. 

Learn more: 

• VoIP on the nbn®: A Simple Guide for Businesses  

• VoIP & nbn® for Businesses  

Before you finish, ask yourself: 

✔ MFA enabled on key accounts 
✔ Strong passwords in use 
✔ Password manager implemented 
✔ Software kept up to date 
✔ Regular backups running 
✔ Wi-Fi secured 
✔ Staff trained to spot scams 

Cybersecurity does not have to be complicated. For most small businesses, simple habits such as using strong passwords, enabling MFA, keeping software updated and backing up data can significantly reduce risk. 

Combined with a secure business internet connection and good security awareness, these steps can help protect your business from common cyber threats.