Keylogger
Malware or hardware that records keystrokes to capture passwords and sensitive information.
Full Definition
A keylogger is a type of surveillance software or hardware that records every keystroke made on a device, capturing passwords, credit card numbers, messages, and other sensitive information without the user's knowledge. Keyloggers are a component of many infostealer and RAT (Remote Access Trojan) malware families.\n\nSoftware keyloggers can operate at the kernel level (hardest to detect), application level, or browser level. Hardware keyloggers are physical devices inserted between the keyboard and computer. Advanced keyloggers may also capture screenshots, clipboard contents, and webcam images.\n\nWhile keyloggers were once a standalone threat, they are now typically bundled into broader infostealer packages that harvest a much wider variety of data. Detection requires behavioral monitoring rather than simple signature scanning, as keyloggers are specifically designed to avoid leaving obvious traces.
Related Terms
Infostealer
Malware designed to silently harvest credentials, cookies, and sensitive data from infected devices.
Malware & InfrastructureMalware
Any software intentionally designed to cause harm, disrupt, or gain unauthorized access to systems.
Malware & InfrastructureStealer Log
A structured package of data harvested by infostealer malware from a single infected device.
Data & LeaksEndpoint Detection and Response (EDR)
Security technology that continuously monitors endpoints to detect and respond to cyber threats.
Defensive SecurityMonitor Your Exposure on Whiteintel
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