1. A software program or hardware device that records keystrokes typed on a keyboard, often used to monitor or steal information without the user's knowledge.
Usage: computing; security; often associated with malicious or unauthorized surveillance

Examples

• The cybersecurity team discovered a keylogger installed on the company's network.
• Hackers used a keylogger to steal passwords and personal information from victims.
• Installing a keylogger on someone else's computer without permission is illegal.
• Parents sometimes use keylogger software to monitor their children's online activity.
• The malware included a keylogger that recorded every keystroke made on the infected device.