ITworld has a story [itworld.com] about certain Hewlett-Packard laptop computers:
The keylogger is found within the PCs' audio driver software and has existed since at least Dec. 2015, the security firm Modzero said in a Thursday blog post [modzero.ch].
The audio driver was designed to identify when a special key on the PC was used. But in reality, the software will capture all the keystrokes and write them in an unencrypted file located on the laptop.