THREAT‑WATCH
Glossary
Keylogger
Software or hardware that records every keystroke a user types, commonly used to steal passwords and sensitive information.
Software keyloggers are typically installed as part of a broader malware infection and run invisibly; hardware keyloggers are physical devices plugged between a keyboard and computer, which require physical access to install but leave no software trace. Either way, the recorded keystrokes, including passwords, credit card numbers, and private messages, are periodically transmitted back to the attacker.