GateKeeper (access control device)

GateKeeper is a wireless proximity-based access control and authentication device that allows a user to automatically lock their computer by walking away and unlock it by walking back. Untethered Labs is an American computer security firm, led by CEO Siddharth Potbhare, that created the original GateKeeper in 2014. The GateKeeper consists of a key fob (the device), a USB dongle to transmit the wireless signal, and software to manage user credentials. The device also functions as a password manager.
GateKeeper Software and Hardware.
GateKeeper software uses a dashboard that displays the device's signal strength, allows users to select or configure lock settings, manage user credentials, and set the range at which the computer detects the device's presence. The GateKeeper software provides the user options to enable two-factor authentication (2-FA) for computer access by requiring the user to enter a PIN and carry the GateKeeper security token to login.
If the USB sensor is ever removed from the computer, the software immediately locks the computer.
GateKeeper Enterprise.
The GateKeeper Enterprise software integrates with the GateKeeper hardware, which allows the administrator to control the deployment and management of GateKeepers on the network. The IT administrator can set security policies, gather log data for auditing, conduct productivity analysis, and deploy updates to the client software.
GateKeeper Halberd.
In December 2017, Untethered Labs announced on Kickstarter that they would release the Halberd, a key fob with a new hardware design. According to the company, the Halberd's larger design, new processor, and added accelerometer improve the device's performance and battery life. The Halberd subsequently reached its funding goal of $25,000 by raising $50,000 in 28 days from over 400 backers and is expected to be released in January 2018. The company also plans to release compatible software for Mac and Linux systems as well as single sign-on capabilities in 2018.