ClickFix has emerged as one of the most pervasive and dangerous cybersecurity threats in 2025, yet remains largely unknown to the average user and even many IT professionals. This social engineering technique manipulates users into executing malicious scripts—often just a single line of code—by tricking them with fake error messages, CAPTCHA prompts, or fraudulent browser update alerts.
The attack exploits the natural human desire to fix technical problems, bypassing most endpoint protections and affecting Windows, macOS, and Linux systems. ClickFix campaign typically begin when a victim encounters a legitimate-looking message urging them to run a script or command, often on compromised or spoofed websites.
Once executed, the script connects the victim’s device to a server controlled by attackers, allowing stealthy installation of malware such as credential stealers (e.g., Lumma Stealer, SnakeStealer), remote access trojans (RATs), ransomware, cryptominers, and even nation-state-aligned malware. The technique is highly effective because it leverages “living off the land” binaries, which are legitimate system tools, making detection difficult for security software.
ClickFix attacks have surged by over 500% in 2025, accounting for nearly 8% of all blocked attacks and ranking as the second most common attack vector after traditional phishing. Threat actors are now selling ClickFix builders to automate the creation of weaponized landing pages, further accelerating the spread of these attacks. Victims are often ordinary users, including families, who may lack the technical knowledge to distinguish legitimate error messages from malicious ones.
The real-world impact of ClickFix is extensive: it enables attackers to steal sensitive information, hijack browser sessions, install malicious extensions, and even execute ransomware attacks. Cybersecurity firms and agencies are urging users to exercise caution with prompts to run scripts and to verify the authenticity of error messages before taking any action. Proactive human risk management and user education are essential to mitigate the threat posed by ClickFix and similar social engineering tactics.
