Ransomware claims hit a record 1,063 victims in October, while Australian organisations still faced 2,117 cyber attacks a week, up 39% year on year. Those figures come from a report covered by Security Brief. They describe pressure on organisations, but they also matter to individuals. Australia ransomware attacks personal data protection is no longer only a corporate concern, because the data inside those organisations is often yours.

This post looks at what the numbers show, why you can be affected without being targeted, and which personal steps make a real difference.

What the record ransomware numbers show

Two figures stand out. The first is the 1,063 ransomware claims recorded in October, described as a record. The second is the average of 2,117 cyber attacks per week faced by Australian organisations, a 39% rise compared with the same period a year earlier.

It helps to be careful about what these numbers do and do not say. A ransomware claim is a victim listed by attackers, and the 1,063 figure is the October total reported in the source. The weekly attack figure counts attacks on organisations, not individuals. The source does not break down which sectors were hit or how much personal data was taken, so we should not guess at that.

What the figures do suggest is a steady, rising volume of attempts. For context on how often Australian businesses are affected, the RSM report on Australian firms hit by ransomware is a useful companion read.

Why your data is at risk even when you aren't the target

Most people will never be the direct target of a ransomware gang. But your name, address, contact details, account information or employment records may sit in the systems of an employer, a medical provider, a retailer or a service you use. When one of those organisations is attacked, your information can be exposed through no action of your own.

This is why the volume of attacks matters to ordinary readers. Each successful intrusion into an organisation is a potential exposure for everyone in its databases. Stolen personal details can later be used to make scam messages more convincing, which is one reason follow-up phishing often comes after a breach.

Organisations also have obligations once an incident occurs. The ransomware reporting rules under the Cyber Security Act 2024 shape what must be disclosed, and understanding them gives you a clearer sense of what to expect from the companies that hold your data.

Personal steps that reduce the damage

You cannot stop an organisation from being attacked, but you can limit what an attacker gains from your information and how far it can be misused.

  • Use a unique password for every account. A password manager makes this practical. If one service leaks your credentials, the others stay protected.
  • Turn on multi-factor authentication. Prefer an authenticator app or a hardware key over SMS codes where the service allows it.
  • Be cautious after any breach notice. Treat unexpected emails, texts and calls referencing your accounts as suspect, even if they include accurate personal details. Go to the organisation's official website or app directly instead of clicking links.
  • Share less data. Provide only what a form requires. Data that an organisation never collected cannot be stolen from it.
  • Monitor your accounts. Check bank and online account activity regularly, and act quickly on anything unfamiliar.
  • Keep devices updated and back up important files. This will not prevent a breach elsewhere, but it protects you from threats that target your own devices.

If you do become a victim of a ransomware incident, the Australian Cyber Security Centre is the official point of contact.

What a VPN does and doesn't protect against

A VPN encrypts your internet traffic between your device and the VPN server and hides your IP address from the sites you visit. That is useful on public Wi-Fi and for limiting some forms of tracking.

It does not protect data that is already stored on an organisation's servers. If a company you deal with is hit by ransomware, a VPN on your device changes nothing about what the attacker can access there. A VPN also does not stop you from entering your password on a phishing site, or from downloading malware.

Think of a VPN as one layer of privacy for your connection, not a defence against breaches of third parties. The steps above do far more to reduce the damage from the kind of attacks described in these figures.

What This Means For You

The rise in ransomware claims and weekly attacks means your personal data is more likely to pass through an organisation that gets targeted at some point. The practical response is to assume exposure is possible and make it less harmful: unique passwords, multi-factor authentication, sharing less, and healthy suspicion of unexpected messages.

Key takeaways

  • Review which organisations hold your sensitive data and close accounts you no longer use.
  • Audit your passwords and enable multi-factor authentication on email, banking and government services first.
  • Treat post-breach contact with caution and verify through official channels.
  • Use a VPN for connection privacy, but do not rely on it against third-party breaches.

To keep building your understanding of Australia ransomware attacks personal data protection, read the RSM report article for how often Australian organisations are hit, and the ransomware reporting rules article for what organisations must disclose.