It is essential to understand that JavaScript itself is not negative. However, it can be misused by people with malicious intent. Some examples of malicious JavaScript include: Cryptojacking – this is the hijacking of a computer’s resources to mine cryptocurrencies. JavaScript is often used to run mining scripts in the victim's browser and exploit its system's processing power. Drive-By Downloads - JavaScript is used here to automatically download and execute malware onto the victim's computer without their consent or knowledge. The malware could be a virus, ransomware, or any other type of malicious software. Cross-Site Scripting (XSS) Attacks – These involve injecting malicious JavaScript code into a trusted website which is then executed by the victim's browser when they visit the compromised page. The code can be used to steal sensitive information or to perform other malicious actions. Web-Based Keyloggers - Malicious JavaScript can be used to capture user keystrokes on web forms and send them to an attacker-controlled server. This technique is usually used to steal sensitive information.