Cybersecurity is no longer just a problem for large companies. Australian small businesses are increasingly targeted because they often have valuable information but fewer resources dedicated to protecting it. Industry figures show that 43% of cyberattacks target small and medium businesses, and the consequences can be serious. The good news is that improving your cybersecurity does not have to be complicated. This practical checklist covers the cybersecurity best practices every business owner or manager can act on to reduce risk, without getting buried in technical jargon. For a more detailed look at the bigger picture, read our complete cybersecurity guide for small businesses.
10+ Cybersecurity Best Practices for Small Businesses
There is no single piece of software that makes a business secure. Good cybersecurity comes from putting several sensible protections in place and making sure they are maintained. The following cybersecurity best practices cover the areas that make the biggest difference for a typical small business, from passwords and backups to staff training and having a plan when something goes wrong. Think of this as a small business cyber security checklist you can work through section by section, rather than something you need to tackle all at once.
1. Use strong passwords and two-factor authentication
Company and personal accounts that have a simple or reused password are the easiest to hack. Creating a unique, complex password is essential to improving cybersecurity. A strong password contains at least 12 characters and includes numbers, symbols, and upper and lowercase letters.
Many businesses have adopted two-factor authentication (2FA) as a highly effective method of securing their accounts. When logging into an account, the user is required to enter both their password and a verification code sent to their phone. Research shows that 2FA prevents 90% of hacker attacks by requiring the user to prove their identity in two ways.
2. Enable firewall protection
Using a firewall for your business network is the first line of defence that protects your data against cyberattacks. Firewalls prevent unauthorised users from accessing your company mail services, online databases and other sources of information that can be accessed from the web.
This applies to all business locations – office, home office, or remote site. Ensure firewalls are configured correctly and reviewed regularly, not just switched on and forgotten.
3. Connect to secure Wi-Fi
Ensure that your Wi-Fi networks are hidden, secure, and encrypted. If staff need to connect to a public Wi-Fi network, use a virtual private network (VPN) to keep your information private. There is a higher risk of sensitive data being intercepted through public Wi-Fi networks.
Be wary of free VPN services. Many are not secure and may use your data for their own purposes. Insight IT can help you select a trusted, enterprise-grade VPN solution for your team.
4. Update your systems regularly
Antivirus and other security software are frequently revised to account for new types of cyber threats. These revisions come in the form of “patches” which you install as updates on your device. Promptly installing the latest updates on your security software, web browsers, and operating systems helps you to stay fully protected. Here are a few effective ways your business can maintain an up-to-date IT system:
- Keep a running inventory of every IT asset as well as their patch versions
- Check hardware and software developer websites for critical updates
- Use patch management tools to automatically install the latest updates across company software and devices
- Conduct regular scans for viruses and other cyber threats, especially after major changes to IT infrastructure
- Remove outdated, unused files and software
5. Back up your files
Many cyberattacks cause the loss or corruption of data that is essential to the running of your business. Always back up important files to stay protected against a data breach or malware attack. There are several data backup options such as external hard drives, local servers or remotely on the cloud.
It’s best practice to use the 3-2-1 backup strategy where you have at least three copies of important files. Your files are saved in at least two different physical locations with at least one of those locations being offsite. You’ll have multiple copies that will prevent you from losing everything.
6. Set access restrictions
Limit employees and third parties to only access the files and applications they need to do their jobs. This minimises the likelihood of privacy breaches, unauthorised installations and other insider threats. Employees also need to follow the company’s policies on how confidential information is stored and used.
Apply the principle of least privilege – every user, device, and application should have only the minimum access required to perform its function. Review access permissions regularly, especially when staff change roles.
7. Avoid suspicious emails, files, pop-ups, and links
Phishing is a common type of cybercrime in which the attacker poses as a legitimate person or organisation to obtain sensitive information such as passwords and credit card details. Phishing attacks often result in serious financial losses and damaged reputation for businesses.
A more targeted variant, Business Email Compromise (BEC),sees attackers impersonate a supplier, executive, or partner to authorise fraudulent payments. BEC losses cost Australian businesses hundreds of millions of dollars annually.
As a rule, never enter personal or company information in response to an email, pop-up webpage, or any other form of communication you did not initiate. Avoid clicking on links or downloading files from a suspicious source. If you are unsure, contact Insight IT before acting.
8. Train your staff regularly
Your security tools can only do so much if your staff do not know what to look for. Regular cybersecurity awareness training should cover practical situations employees are likely to encounter, such as suspicious emails, unusual payment requests, fake Microsoft 365 login pages and unexpected requests for sensitive information. Training should be ongoing rather than a once-a-year exercise, because threats change and people forget.
9. Have an incident response plan
You do not want to work out what to do during a cyberattack. Create a simple incident response plan that explains who needs to be contacted, how affected accounts or devices will be isolated, who communicates with customers or other stakeholders, and how systems will be restored. The plan should be easy to find and reviewed regularly. Even a basic plan is better than everyone trying to work it out under pressure.
10. Assess your third-party and vendor risk
Your business is not only responsible for the systems you control. Suppliers, software providers, accountants, contractors and other third parties may have access to your information or systems as well. Understand what access they have, what information they hold and what security measures they use. Remove access when it is no longer required and review important suppliers periodically.
11. Consider cyber insurance
Cyber insurance can provide another layer of protection when a serious incident occurs, helping with some of the costs associated with recovery, investigation, legal support and business interruption. It’s one of the more overlooked cyber security tips for small business Australia owners tend to skip until after an incident, not before. It is not a replacement for good cybersecurity, and insurers may have specific security requirements before providing cover. Treat it as part of your wider risk management strategy, not a substitute for prevention.
12. Partner with a Managed Services Provider
Even when your business has advanced tools and policies in place for cybersecurity, there is still the risk of human error. It is common for employees to become complacent at some point, which means they stop following best practices.
Partnering with a Managed Services Provider is the ideal solution for businesses with limited IT resources. An experienced MSP like Insight IT will proactively prevent cyber threats or mitigate the damage if a breach does occur. Here are a few key security services offered by Insight IT:
- Ensuring that all devices are updated with the latest antivirus and other security software
- Applying program updates when new versions and fixes become available
- Installing operating system updates on a regular schedule that you can configure
- Assessing your current IT system to identify any vulnerabilities and security issues
- Constant, remote monitoring to promptly detect and address cyber threats
- Advising businesses on how to mitigate security risks during day-to-day activities
Following this checklist on your own will meaningfully reduce your risk, but consistency is where most small businesses struggle – patches get missed, staff training lapses, and access permissions are forgotten as people change roles. That’s the gap an MSP is built to close.
Final Words
The value of having an MSP is not simply having more security software. It is having someone responsible for making sure the basics are consistently done, keeping an eye on what is happening across your environment and helping you respond when something does not look right. For a small business without a dedicated IT security team, that ongoing oversight can make a significant difference.
If you are not sure where your business stands, start with an assessment rather than guessing. Insight IT can review your current environment, identify specific vulnerabilities and recommend practical steps to improve your protection. You do not need to fix everything at once. The important thing is knowing where your biggest risks are and what to address first.
