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Beware of tricks to trick users into entering fake CAPTCHAs and installing malware

Hackers are using fake CAPTCHAs to trick users into installing malware without knowing it. When accessing some websites containing content such as movies and music, users may see a request to check the box "I'm not a robot".

Báo Khoa học và Đời sốngBáo Khoa học và Đời sống24/03/2025

Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc
(Photo: Malwarebytes Labs)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-2
After clicking on the fake CAPTCHA , the website will automatically copy a piece of malicious code into the device's cache. Users will then be instructed to open the Run dialog box on Windows using the Windows + R key combination. (Photo: Thanh Nien Viet)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-3
In this dialog box, they are asked to paste the copied content without knowing that it is a command to download malicious code. (Photo: McAfee)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-4
When you press Enter, your computer will automatically download and execute malicious code, which may include spyware or other malware. (Photo: eSecurity Planet)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-5
Some of these malware will continue to download more dangerous software to steal personal information or take control of the computer. (Photo: SoSafe)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-6
To avoid becoming a victim, users need to be cautious when encountering requests to enter commands into Run or Command Prompt. (Photo: Cyber ​​Security 360)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-7
Disabling JavaScript in your browser can help prevent this attack method, but it can also disrupt some legitimate websites. (Photo: Toptal)
Quai chieu dung CAPTCHA gia, lua nguoi dung tu cai ma doc-Hinh-8

The best way to protect yourself is to always be on the lookout for fake CAPTCHAs and never do anything you don't understand. (Image: AVG AntiVirus)

Dear readers, please watch more videos: Top 10 'Scary' Technology Devices of the Future.


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