Posted: 23rd April 2025
Zero-click malware attacks have increased by 80% in the last year. This sneaky cyber attack can infect devices without you even clicking a link.
This silent threat isn’t new. In 2019, around 14,000 WhatsApp users were targeted by zero click malware without any knowledge. All businesses, big and small, are vulnerable to these attacks.
How zero-click malware works
Zero-click malware attacks exploit flaws in software. Messaging apps and web browsers are common targets. The hacker then sends data designed to trigger the identified flaw in the form of a text or a file. Remember, this threat doesn’t rely on the user’s clicking. Once the app processes the malicious data, the malware installs itself silently.
Think of it like a secret code. So secret, it can even bypass your security.
Read more about cyber threats your antivirus software could miss.
Commonly exploited vulnerabilities
Hackers often target memory corruption bugs, which allow them to run their code. One example is CVE-2019-3568 in WhatsApp. Another is CVE-2020-16009 in Chrome. Microsoft and Apple have also had their share of zero-click flaws. This is a stark reminder of the importance of installing those software security updates when prompted.
Zero-click malware vs. traditional malware
Traditional malware relies on you to click a link or open a file. Zero click malware doesn't need this, making it more dangerous and difficult to detect. No suspicious email. No strange attachments. No red flags.
The impact of zero-click malware on your business
Like many, these attacks can cripple a business. They can lead to significant financial losses and ruin your company's reputation. Although hard to spot, they shouldn’t be ignored.
Financial loss and downtime
A data breach can cost your business a lot of money. If you’re not covered with an IT support provider, it can cost you to recover your data. Then there are the financial implications of being unable to conduct business during the downtime. Not to mention the potential of losing clients or customers along the way.
Reputational damage
Customers and suppliers expect you to keep their data safe. A zero-click malware attack can break this trust and lead to ongoing bad press. Rebuilding the reputation of your business can take years.
Legal and regulatory implications
Data breaches can lead to lawsuits if you are in violation of privacy laws like GDPR. This can result in huge fines. For the worst-case scenario where a data breach is unavoidably successful, be sure your compliance is in order.
How to defend against zero-click malware attacks
Protecting against these attacks takes work. A multi-layered approach to your security is best. Zero click.
Implementing a robust patch management system
When your software prompts you to install an update, do it as soon as possible. These updates usually contain security patches for known vulnerabilities. The longer you put it off, the longer you leave the door open to hackers.
Alternatively, it might benefit your business to work with a managed IT support provider. This way, all updates are constantly monitored and installed for you without disruption to productivity.
Network segmentation and monitoring
By dividing your network into sections, you can limit the spread of a zero-click malware attack. You can also detect a potential attack early by monitoring your network traffic for unusual activity. If you partner with a proactive IT support provider, your systems will be monitored 24/7.
Employee awareness training
With the cyber threat landscape changing constantly, it’s important to keep your employees in-the-know about zero-click and other new threats. Cyber security awareness training will show them how to spot suspicious activity and what to do next. Your employees are your first line of defense.
We can help protect your data
With the rise in sophisticated cyber attacks, cyber security has never been more imperative. That’s why we provide free content-rich cyber security staff training for all our clients, with tips and information that can be applied in and out of work.
What’s more, all of our clients are covered by Jupiter Protect - our unique security framework. To find out more, drop us a line – we’re waiting to share our expertise with you.
