Why Small Businesses Aren’t Too Small for Cyber Attacks

Do you think your business is too small to be a target for cybercriminals? 

It’s a common belief, but the truth is most modern cyber attacks aren’t personal. They’re automated, scanning every corner of the internet for weaknesses to exploit. When cybersecurity for businesses is overlooked or weak, you’ll still be targeted, no matter how small you are.

Automated Attacks Don’t Pick Targets

There are real cyber security threats that target Australian small and medium sized businesses. 

In 2023-2024, the Australian Cyber Security Centre (ACSC) received over 87,000 cybercrime reports. That’s roughly one attack every six minutes.

It cost small businesses $49,600 per incident –  and for medium businesses, about $62,800, even after a 35% drop from the year before. 

That shows that attackers don’t really care how big you are – only how easy you are to breach. Automated tools constantly scan for:

• Known vulnerabilities
• Weak passwords
• Misconfigured cloud services

Once inside, they move fast – stealing data, locking files, or rerouting payments.

That’s why it pays to patch early, enforce strong authentication, and follow the Essential Eight baseline controls before an attacker finds the same gap.

6 Common Cyber Threats You Should Know and How To Stay Ahead

You don’t need to be a large organisation to face serious cyber risks. Many of the attacks that hit businesses of all sizes start the same way: with weaknesses that are easy to overlook.

Here are six of the most frequent cyberthreats every business should know, and what you can do to stay ahead of them:

1. Business Email Compromise Is Still the Easiest Way To Steal From You

For most businesses, email is still where most scams begin. Attackers use Business Email Compromise (BEC) tactics to impersonate suppliers, clients, or staff and trick you into sending money to the wrong account.

Common BEC tactics include:

• Tampering with invoices to change payment details before they’re sent
• Registering look alike domains that closely mimic your real suppliers
• Sending urgent or fake messages that pressure staff to make quick transfers

Even one fraudulent email can delay a project or drain an account. That’s why it’s vital to confirm any payment or bank detail changes by phone and turn on multi-factor authentication (MFA) for every key account.

According to the ACCC’s Scamwatch, payment redirection scams – a common form of business email compromise – cost Australian businesses more than $152 million in reported losses in 2024.

To prevent this, you can:

Confirm any payment or bank detail changes by phone before sending funds. Turn on MFA for email and finance systems. Use email filtering and domain protection (SPF, DKIM, DMARC) to block spoofed addresses. Encourage staff to slow down and verify unusual or urgent requests.

2. Ransomware Locks You Out and Holds Your Business Hostage

Ransomware attacks can bring a small business to a complete stop.

Once inside your systems, the malware encrypts files and locks you out of your own computers or cloud accounts. Attackers also steal data before encryption, threatening to leak it unless you pay.

It’s not just a technical issue. 

Losing access to your data can delay projects, damage client trust, and halt operations overnight. Even if you have backups, they’re only useful if they’re current, secure, and actually work when tested.

How do you prevent this?

Keep software and systems patched to close known vulnerabilities. Turn on multi-factor authentication (MFA) for admin and remote access accounts. Maintain offline or immutable backups and test restorations regularly. Segment networks and limit admin rights so one infection can’t spread everywhere. Make sure staff know not to open suspicious attachments or links, even from known contacts.

3. Cloud Sharing Mistakes Can Expose Sensitive Data

Cloud platforms like Microsoft 365, Google Workspace, or file-sharing tools make collaboration easy. But that convenience can also create risk.

As small businesses grow, it’s common for folders, drives, or client portals to be shared too widely or left open long after projects end. That can expose client data, contracts, or financial documents without anyone realising it. 

Third-party apps connected to your cloud accounts can also introduce hidden vulnerabilities, especially if they’re granted broad permissions or never reviewed.

You can lower the risk by:

Review sharing and access settings in your main cloud tools every few months. Restrict access to “need-to-know” and remove old or guest accounts. Use MFA on all accounts and require it for subcontractors and partners. Regularly audit connected apps and integrations to make sure they’re legitimate and necessary. When people change roles or leave, remove access immediately to avoid forgotten entry points.

The ACSC Small Business Cloud Security Guides offer practical advice on setting permissions, reviewing shared access, and keeping your SaaS tools configured securely.

4. Weak Passwords Still Open the Door for Attackers

Passwords are still the first line of defence for most small businesses, and often the weakest.

Attackers take advantage of reused or shared passwords, or old admin accounts that no one remembers to close. Once one password is stolen, they can often access multiple systems or cloud services.

A few small habits make a big difference:

Turning on multi-factor authentication (MFA) for email, admin, roles, and remote access accounts. Use a password manager to create and store unique, complex password. Avoid shared logins Give each person their own account and access level Review user access regularly and remove dormant accounts when staff leave

These simple steps close off one of the easiest paths into your business network. It costs nothing except a few minutes of attention. 

5. Outdated Software Makes You an Easy Target

Cybercriminals rarely need to invent new tricks. They just look for old software that hasn’t been updated.

Attack tools constantly scan the internet for known vulnerabilities in operating systems, web browsers, and plugins. If your systems are behind on updates, attackers can exploit those weaknesses in minutes.

Keeping up with updates doesn’t have to be complicated:

Enable automatic updates wherever possible, especially for browsers and devices used for remote work Schedule regular maintenance windows so patches can be applied without disrupting daily operations Run routine vulnerability scans to spot outdated or misconfigured systems Make sure your IT provider or MSP documents patch cycles so nothing gets missed

Keeping maintenance short and regular – and running routine vulnerability scans – helps reduce risk without disrupting day-to-day operations.

6. Phishing Scams Turn Everyday Emails Into Traps

Phishing remains one of the most common ways attackers get past your defenses, not by hacking systems, but by tricking people.

In fact, the APWG reported over one million phishing attacks just in the first quarter of 2025 alone.

These scams often look like routine emails from banks, suppliers, or even your own staff, urging you to click a link or open an attachment. Once you do, attackers can steal passwords, install malware, or gain access to your business accounts. 

Security improves fastest when you follow a repeatable cycle: 

Alt-text: Circular diagram showing the cyber security cycle

• Assess: Identify your critical systems, data flows, and supplier connections. Review your progress against the Essential Eight maturity levels.
• Protect: Enforce MFA, harden email and web gateways, filter admin access, and back up critical data.
• Monitor: Centralise logs and alerts for suspicious sign‑ins, mailbox rule changes, file exfiltration, and endpoint activity.
• Respond: Define roles, contacts and decision points. Rehearse real-world scenarios such as BEC and ransomware so your team knows exactly what to do.

Managed Cyber Security for Businesses That Does the Cycle for You

Staying on top of updates, alerts, and threats takes constant attention. 

Holocron Sentry manages that cyber security workload for your business – quietly, consistently, and without extra staff.

We provide: 

• 24/7 monitoring and alerting across devices, user accounts, and cloud activity so threats are caught early.
• Threat detection and response tailored to small-business risks with clear next steps.
• Vulnerability management and updates to close known weaknesses fast.
• Reliable backups and recovery to keep your data safe and ready to restore.
• Governance and reporting aligned with the ACSC Essential Eight and ISO/IEC 27001 so compliance stays simple.

Combine these steps with a managed cyber security program to make sure your improvements last. This is cybersecurity for businesses designed to be predictable, practical, and steadily effective. 

Talk to Experts Who Understand Cyber Security for Businesses

Ready to see how your business’s cyber security measures up? Let’s talk about your priorities and build a plan that fits the way your team works.

Book a free consultation or contact us for more information.