A ClickFix attack turns your own employee into the attacker’s tool. A fake web page, often posing as a CAPTCHA, a browser error or a software installer, tells the visitor to copy a command and paste it into their computer to “fix” a problem. Google describes it as a technique that tricks users into copying and running malicious commands themselves, and the command pasted is often not the one shown on the page.

On October 20, Google announced new Chrome protections aimed at exactly this, and Microsoft’s 2026 Digital Defense Report explains why it matters. Between February and early May 2026, Microsoft Defender saw ClickFix-style commands run on more than 1.1 million unique devices, roughly an eightfold increase. Here is how the attack works, what Chrome now does about it, and four defences any small business can put in place this week.

What a ClickFix Attack Looks Like

The page looks routine. It might ask you to prove you are human, report that your browser needs a fix, or offer to install a popular tool. Then it asks you to copy something and paste it into Windows or the Terminal. According to Google, the command usually calls built in tools such as PowerShell or the Command Prompt, which security software trusts. Because the download happens in the terminal instead of the browser, it sidesteps the browser’s own download protections.

Laptop showing a fake web page that asks the visitor to copy and paste a command

Recent campaigns show how convincing these pages have become. BleepingComputer reported a search ad for a popular AI tool that displayed the Bing domain, passed through a compromised website and landed on a fake download page. The page showed the genuine install command, but its copy button put a different command on the clipboard.

Why a ClickFix Attack Is Growing

The attack works because the person approves it. Nothing is exploited and no file arrives by email, so many tools see nothing unusual. Microsoft’s report also notes that user execution, where someone is tricked into running something, accounted for 30% of the initial access seen in Microsoft Defender Experts data, with valid accounts adding another 20%. Getting a person to do the work is simply cheaper for attackers than breaking in.

What Chrome Now Does About It

Google says Chrome’s Enhanced Protection mode now checks for a ClickFix attack. If someone copies a suspicious command, Chrome removes personal information from the clipboard content, sends it to Safe Browsing for analysis, and shows a warning if the verdict is dangerous. Google says the system is built for high precision so it does not disrupt legitimate developer work. Chrome also gained a lower confidence “suspicious site” warning and a server side Gemini model that evaluates page content for scams.

Browser warning appearing after a suspicious command is copied

There is a catch. Standard Protection is the default, and these features belong to Enhanced Protection. Google also notes that Enhanced Protection sends site URLs and a small sample of page content to Safe Browsing, which some businesses will want to weigh before switching it on. Google says Enhanced Protection users are ten times safer from phishing and scams, based on comparing the average number of safety warnings shown to each group.

4 Smart Defences Against a ClickFix Attack

  1. Teach one rule. A website that asks you to copy a command and paste it into Windows, the Terminal or a command prompt is never giving real troubleshooting advice. Close the page and tell IT. Google’s own example of a ClickFix scam carries a plain reminder that Chrome will never ask you to repair it that way.
  2. Turn on Enhanced Protection for staff browsers. In Chrome, open Settings, then Privacy and security, then Security, and choose Enhanced protection. Your IT provider can manage the setting centrally on company devices.
  3. Install software from known sources only. Type the vendor’s address or use a bookmark instead of clicking a sponsored search result, and keep a short list of approved tools so staff know where to go.
  4. Limit what a pasted command can do. Standard user accounts without local administrator rights, managed endpoint protection and quick reporting all shrink the damage if someone does paste. Each one makes a ClickFix attack less likely to turn into a breach.
Small team gathered around a laptop agreeing on one security rule

The first habit in our Cyber Security Awareness Month guide, pause before you click, applies here too. A ClickFix attack depends on the person skipping that pause.

If you would like help rolling out these settings or checking how your team’s browsers and accounts are set up, we support small businesses across Markham and the GTA with cyber security and managed IT services. Get in touch and we will walk you through where to start.