What about software keyloggers?

Software keyloggers are considered to be an alternative to hardware keyloggers. However, they inherit all the problems any other software security application would have:

Fully detectable from OS task manager and anti-virus programs

Operating system dependent (Mac, Windows, Linux)

Necessity to upgrade together with operating system

Access required in order to install (usually with administrative rights)

Per-installation licensing

No logging possible during computer power-up

Who are we?

A hardware keylogger is a clean and stealthy solution, that just always works! No drivers or software are necessary, no surprises after an operating system update. Read more here

Keelog is the leading manufacturer of hardware keyloggers. The KeyGrabber and AirDrive series of keyloggers has sold in 100,000+ units worldwide, making it the most successful product in its class. Keelog has created the concept of a keylogger operating as a USB stick for retrieving data, which is the standard mode of operation for modern keyloggers. Keelog has also introduced the first PS/2 keylogger with USB data retrieve, the first Wi-Fi wireless keylogger, and the first miniature video-loggers. For more information, go to the about us page.

Who uses a hardware keylogger?

Parents, for monitoring kids

Employers, for monitoring employee performance

IT administrators, for collecting statistics

Police and investigators, for collecting evidence

Writers, for making a backup of typed text

Shops, stores, and warehouses for keeping track of barcode-scanner data

Law enforcement agencies, for security and forensic purposes

Air traffic management, for storing a history of equipment usage

Postal and delivery services, for forwarding barcode reader data

...and everyone else, for keeping track what's happening on their computer!

Read more here