Bad CAPTCHA in the wild tricks Mac users into installing malware through Terminal
By Andrew Orr
Published on March 10, 2026.
Hackers have developed a tool called ClickFix, which combines fake human-verification prompts with malware to trick users into running Terminal commands bypassing Mac security. The tactic disguises malware delivery as a routine human verification step and instructs victims to open tools like Terminal or a command prompt and paste a command to complete verification. The command then installs malicious software on the system, which can steal passwords, browser information, and cryptocurrency wallets. The technique is rapidly spreading through compromised websites, malicious advertisements, and phishing campaigns. Security researchers identified ClickFix campaigns in 2024 as attackers experimenting with copy-and-paste malware delivery methods. Researchers now consider it one of the fastest-growing social engineering threats on the internet.
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