1. Software or hardware devices that record keystrokes typed on a keyboard, often used to monitor or steal information without the user's knowledge.
Usage: Usually plural or used in computing/cybersecurity contexts; Often associated with malicious or unauthorized surveillance

Examples

• The company installed keyloggers on employee computers to monitor productivity.
• Cybersecurity experts warned users about keyloggers hidden in malicious downloads.
• Hackers used keyloggers to steal passwords and financial information.
• Parents sometimes use keyloggers to track their children's online activity.
• Antivirus software can detect and remove keyloggers from your system.
• The criminal deployed keyloggers on the victim's laptop without permission.