One Wrong Click Could Trigger a Data Breach: What Agencies Need to Do Next

One accidental email.
One hacked inbox.
One staff member sending the wrong document to the wrong person.
That is all it takes for your agency to have a data breach.
And what you do in the next can determine whether this becomes a manageable issue or a regulatory nightmare.

By 2026, real estate agencies are holding more personal information than ever before.
Rental applications. Driver licences. Passport information. Employment records. Trust account information. Landlord bank details. CRM databases.
That makes agencies attractive targets for cyber criminals.
It also means simple operational mistakes can create serious privacy issues.

We regularly see agencies assume a breach only matters if there has been a major cyber attack. That is not true. 
A breach can include: 

• Sending documents to the wrong person

• Losing a laptop or USB

• Former employees still having access to systems

• Staff accessing files they should not see

• Hacked email accounts

• Unsecured document storage 

Under Australian privacy laws, agencies covered by the Privacy Act may have legal obligations to assess and potentially report eligible data breaches.

The good news?
There is a clear process to follow. 

Step 1: Contain the Breach Immediately

Your first priority is stopping further damage.
This may include: 

• Recalling emails

• Locking compromised accounts

• Changing passwords

• Removing unauthorised access

• Contacting your IT provider

• Recovering lost devices

• Securing physical files 

Act quickly.
Delays can make things worse. 

Step 2: Assess What Information Was Involved

You need to understand exactly what information has been compromised. 
Ask:

• What personal information was involved?

• Was sensitive information included?

• How many people were impacted?

• Was the data encrypted?

• Has the information been accessed? 

Information involving identity documents, financial records, passport details, tenancy applications, and employee data often carries higher risk. 

Step 3: Determine Whether Serious Harm Is Likely

Under Australia’s Notifiable Data Breaches scheme, agencies generally have up to 30 days to assess whether the breach is likely to result in serious harm. 

Serious harm may include: 

• Identity theft

• Financial fraud

• Emotional distress 

• Reputational harm 

Not every breach is reportable.
Every breach must be assessed. 

Step 4: Get Legal Advice Early

This is where agencies often make costly mistakes. Some overreact and notify everyone unnecessarily.
Others ignore the issue and hope it disappears. Both approaches can create bigger problems. 

We help agencies determine: 

• Whether notification is required

• What must be reported

• How communications should be handled

• How to reduce regulatory exposure 

Step 5: Notify the OAIC (If Required)

If the breach is considered an eligible data breach, you may need to notify: 

• The Office of the Australian Information Commissioner

• Affected individuals 

Notifications must clearly explain:

• What happened

• What information was involved

• What steps individuals should take

• What your agency is doing to respond 

Poorly drafted notifications can create further risk. 

Step 6: Fix the Root Cause

Once the immediate crisis is managed, agencies need to prevent repeat incidents. 

This may involve: 

• Updating privacy policies

• Improving internal systems

• Training staff

• Tightening access controls

• Reviewing third party platforms

• Creating a formal breach response plan 
  

Case Studies: How We’ve Helped Agencies Navigate Breaches

Case Study 1: The Wrong Email

A property manager accidentally emailed a tenancy file containing identification documents to the wrong applicant.
We helped assess the breach, manage notifications, and improve internal processes.
The issue was contained quickly before escalating. 

Case Study 2: Former Staff Access

A former team member still had CRM access after leaving the business.
They downloaded client information months later.
We helped the agency assess legal obligations, secure systems, and implement stronger offboarding procedures. 

Case Study 3: Hacked Email Account

An agency principal’s email account was compromised, exposing landlord financial information.
We worked alongside their IT team to manage legal obligations and notification requirements. 

Key Takeaways

• Data breaches are often caused by simple human errors

• Every suspected breach must be assessed

• Some breaches require regulator notification

• Quick action reduces legal and reputational risk

• Agencies should have a breach response plan before something goes wrong 

Next Steps

A data breach is stressful enough without trying to figure out your legal obligations during the crisis. 
We help real estate agencies assess breaches, manage notifications, and put stronger systems in place before the next issue happens. 

If you are unsure where your data sits then you are at risk of a data breach. It is a legal requirement that you have a data breach response plan. Book in for your Privacy Audit today and we will help you map where your data sits, ensure you are complaint and provide you with your data breach response plan.

Frequently Asked Questions (FAQ)

• What counts as a data breach?

  Any unauthorised access, disclosure, loss, or misuse of personal information. 

• Do all breaches need to be reported?

  No. Only eligible breaches likely to cause serious harm. 

• How long do we have to assess a breach?

  Generally up to 30 days under the Notifiable Data Breaches scheme. 

• Can employee mistakes cause data breaches?

  Yes. Human error is one of the biggest causes.

• Should we call a lawyer or IT team first?

  Often both. You need technical containment and legal guidance. 

Luke Shumack – Partner, O*NO Legal

Luke Shumack is one of the Partners at O*NO Legal with a Bachelor of Laws and a sharp focus on helping agencies and business owners stay compliant while scaling with confidence. Since starting his legal career in 2021, Luke has worked closely with real estate agencies, startups, and established businesses on privacy compliance, employment law, contractor agreements, mergers and acquisitions, and corporate governance. Known for his tech-savvy approach and love of efficiency, Luke blends legal precision with practical business strategy—making the complex simple for clients who want to move fast without risk.

Boring legal stuff: This article is general information only and cannot be regarded as legal, financial or accounting advice as it does not take into account your personal circumstances. For tailored advice, please contact us. PS - congratulations if you have read this far, you must love legal disclaimers or are a sucker for punishment.