Hardware keylogger | Usb, Wifi, Data storage device
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Keylogger Malware is known by many names such as keylogging, keystroke logging, keystroke logger, keyboard capturing, system monitor and a few times as a Keylogger Trojan
Amazon.com: Keystroke Logger
Amazon.com: keylogger
Compilation of phishing and keylogger attacks
Built-in Keylogger Found in MantisTek GK2 Keyboards—Sends Data to China