Final answer:
A drive-by download is when unsuspecting users visit an infected website and their browsers download code that targets a vulnerability in the user's browser.
Step-by-step explanation:
When unsuspecting users visit an infected website and their browsers download code that targets a vulnerability in the user's browser, it is called a Drive-By Download.
Hackers use various techniques to infect websites and exploit vulnerabilities in users' browsers. A drive-by download occurs when malicious code is automatically downloaded onto the user's device without their knowledge or consent.
Drive-by downloads can be used to install malware, such as viruses or ransomware, steal sensitive information, or gain unauthorized access to a user's device.