Beware of Common Malvertising Attacks

ByMark Waeger

When was the last time you clicked on an online ad?

Most people assume ads are genuine and that’s exactly what cybercriminals are counting on.

Malvertising (short for malicious advertising) is when scammers use online ads to:

  • Trick you into downloading malware
  • Steal sensitive information like passwords or payment details
  • Pressure you into paying fake fees

The threat is growing fast, and it doesn’t always take a click to become a victim. Simply loading a malicious ad in an outdated browser can be enough to compromise your device.

The 3 Most Common Malvertising Attacks

1. Scam Malvertising

You see an ad claiming your computer is infected. It tells you to call “support.” Once you do, scammers convince you to install software that gives them remote access and then charge you to fix a fake issue.

2. Fake Installer Malvertising

An ad leads you to what looks like a trusted website. You download software that seems legitimate, but instead, you’ve just installed malware on your device.

3. Drive-By Download Malvertising

These attacks don’t even need a click. Outdated browsers are exploited the moment an ad loads, silently installing malicious files or extensions.

How to Protect Your Business

  • Stay sceptical – If an ad says your device is hacked or demands urgent action, it’s almost always fake.
  • Check the link – Hover before clicking. If it doesn’t go to a legitimate domain, don’t touch it.
  • Update your browser – The latest versions patch security holes that malvertising often exploits.
  • Train your team – Employees are your first line of defence. A little awareness goes a long way in avoiding costly mistakes.

Keep Your Business Safe

Scammers rely on trust and quick reactions. A healthy dose of caution can stop them in their tracks.

At Vaelis IT, we help businesses across the Northern Beaches and North Shore stay safe from malvertising and other cyber threats. From cybersecurity solutions to staff training, we give your team the tools and knowledge to spot scams before they cause damage.

Want to protect your business from malvertising and online scams?
Get in touch today and let’s secure your systems.

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