When they are disconnected or out of range it locks your Mac. It can also unlock your Mac when they are reconnected or come back in range.
Unlike competitors, TokenLock can also unlock your screen saver or automatically enter your password when your Mac wakes from sleep - so long as your device is connected or in range.
Other features not available anywhere else:
Run any App, Shell script or AppleScript when locking or unlocking. The possibilities are limitless - log out of your IM client. Stop music playback. Send yourself a message and more.
Safe Networks: Avoid locking on certain WiFi networks
Sleep Aware: When TokenLock is locked it can allow both Screen Saver and sleeping.
Customizable lock screens, messages and backgrounds.
Check device serial numbers
Active checking when starting up to make sure the device is present, otherwise lock the computer.
USB Grace period gives you time to quickly swap USB ports if necessary.
Relock will re-lock if someone manually unlocked your computer without inserting the USB device.
Different check interval for battery or AC modes.
Adjustable timeout for finding the bluetooth device.
Adjustable number of connection attempts.
Stealth mode: Completely hide Tokenlock and it's Menu Bar icon.
Option to have TokenLock confirm locking when clicking the Dock Icon.
Warning beep (adjustable volume) when Bluetooth device is not in range, before locking.
USB device insertion/removal sounds (adjustable volume)
Unlock/Lock chirps (adjustable volume)
USB: You can tell it to monitor almost any USB device, such as a hard token like YubiKey, a removable flash drive or any other USB device for that matter. Whenever the device is disconnected it will immediately lock your computer.
Bluetooth: Tokenlock can monitor any Bluetooth device to check if it is removed from range, such as your cellphone or a headset. Token lock checks periodically based on a schedule you choose to see if the Bluetooth device can still be seen. You can set different schedules based on whether or not your computer is plugged into power or is simply on battery to conserve battery power. The device does not have to be paired with your computer, allowing you to use just about any Bluetooth device - not just those that the computer supports.
In addition, you can easily lock your computer manually using the TokenLock menu. Tokenlock can be set to required a password to change settings or to quit the app, further securing your system.
Whats New in Version 4.50
Fixed an error where 10.6 systems would not run TokenLock properly.