Computer data protection lock
An information handling system includes a lock, a switch, and a south bridge. The lock is configured to receive a key and to alternate between a locked position and an unlocked position. The switch is in communication with the lock. The switch is configured to receive a signal from the lock, to close if the lock is in the locked position, and to open if the lock is in the unlocked position. The south bridge is in communication with the switch. The south bridge is configured to disable a plurality of communication ports of the information handling system when the switch is closed, and configured to enable the communication ports when the switch is opened.
1. An information handling system comprising:
a mechanical lock configured to receive a first key and configured to rotate between a locked position and an unlocked position, wherein the lock comprises a contact and contact pads, wherein when the mechanical lock is in the locked position, the contract is in physical communication with the contact pads, and wherein when the mechanical lock is in the unlocked position, the contact is not in physical communication with the contact pads, and wherein a second key attached to a particular location by cable is securely connected to the first key, thereby securing the information handling system in the particular location;
a control line circuit comprising a resistor and a switch, wherein the switch is configured to receive a signal from the contact and contact pads of the mechanical lock, wherein the resistor has a first terminal connected to a control line and a second terminal connected to a high voltage reference, wherein the switch has a first terminal connected to the control line and a second terminal connected to a low voltage reference, and wherein:
if the position of the mechanical lock is the locked position:
the switch receives a signal from the physical communication between the contact and the contact pads in response to the physical communication between the contact and the contact pads;
the switch closes in response to receiving the signal, wherein closing the switch pulls the control line to the low voltage reference; and
if the position of the mechanical lock is the unlocked position;
the switch opens, wherein opening the switch pulls the control line to the high voltage reference; and
a south bridge, wherein the control line is connected to a GPIO of the south bridge, and wherein during a start-up of the information handling system, the south bridge executes a basic input/output system (BIOS) power-on self-test (POST), and wherein during the BISO POST, the south bridge disables individual ones of or all of a plurality of communication ports of the information handling system in response to the voltage level of the control line being connected to the GPIO and based upon user presets in the BIOS.
2. The information handling system of claim 1 wherein the basic input/output system is configured to set a flag when the switch is closed.
3. The information handling system of claim 1 wherein the communication ports include universal serial bus communication ports, serial advanced technology attachment communication ports, Bluetooth communication ports, RJ45 communication ports, RJ11 communication ports, or any combination thereof.
4. A method comprising:
detecting a position of a mechanical lock within an information handling system via a control line circuit comprising a resistor and a switch, wherein the resistor has a first terminal connected to a control line and a second terminal connected to a high voltage reference, wherein the switch has a first terminal connected to the control line and a second terminal connected to a low voltage reference, wherein a first key is used to rotate the lock between a locked position and an unlocked position, wherein the mechanical lock is in the locked position when a contact of the mechanical lock is in physical communication with contact pads in the information handling system, and wherein the mechanical lock is in the unlocked position when a contact of the mechanical lock is not in physical communication with contact pads in the information handling system, and wherein a second key attached to a particular location by cable is secure connected to the first key;
if the position of the mechanical lock is the locked position:
sending a signal from the physical communication between the contact and the contact pads to the switch in the information handling system in response to the physical communication between the contact and the contact pads; and
closing the switch in response to the signal, wherein closing the switch pulls the control line to the low voltage reference;
if the position of the mechanical lock is the unlocked position:
opening the switch, wherein opening the switch pulls the control line to the high voltage reference
detecting that the information handling system is turned on, wherein during a start-up of the information handling system, a south bridge of the information handling system executes a basic input/output system (BIOS) power-on self-test (POST);
receiving a second key attached to a particular location by cable within an opening of the first key, thereby securing the information handling system in the particular location;
detecting at a south bridge of the information handling system a voltage state of the control line connected to a GPIO of the south bridge during the BIOS POST, wherein:
if the control line is at the low voltage reference, disabling a plurality of communication ports of the information handling system; and
if the control line is at the high voltage reference, enabling the communication ports.
5. The method of claim 4 further comprising:
setting a flag in the basic input/output system if the control line is at the high voltage.
6. The method of claim 4 wherein the communication ports include universal serial bus communication ports, serial advanced technology attachment communication ports, Bluetooth communication ports, RJ45 communication ports, RJ11 communication ports, or any combination thereof.
7. A method comprising:
detecting a position of a mechanical lock within an information handling system via a control line circuit comprising a resistor and a switch, wherein the resistor has a first terminal connected to a control line and a second terminal connected to a high voltage reference, wherein the switch has a first terminal connected to the control line and a second terminal connected to a low voltage reference, wherein a first key is used to rotate the lock between a locked position and an unlocked position, wherein the mechanical lock is in the locked position when a contact of the mechanical lock is in physical communication with contact pads in the information handling system, and wherein the mechanical lock is in the unlocked position when a contact of the mechanical lock is not in physical communication with contact pads in the information handling system, and wherein a second key attached to a particular location by cable is securely connected to the first key;
if the position of the mechanical lock is the locked position:
sending a signal from the physical communication between the contact and the contact pads to the switch in the information handling system in response to the physical communication between the contact and the contact pads; and
closing the switch in response to the signal, wherein closing the switch pulls the control line to the low voltage reference;
if the position of the mechanical lock is the unlocked position:
opening the switch, wherein opening the switch pulls the control ne to the high voltage reference
detecting that the information handling system is turned on, wherein during a start-up of the information handling system, a south bridge of the information handling system executes a basic input/output system (BIOS) power-on self-test (POST);
receiving a second key attached to a particular location by cable within an opening of the first key, thereby securing the information handling system in the particular location;
detecting at a south bridge of the information handling system a voltage state of the control line connected to a GPIO of the south bridge during the BIOS POST, wherein the south bridge disable individual ones of or all of a plurality of communication ports of the information handling system in response to the voltage level of the control line connected to the GPIO and based upon presets in the BIOS.
8. The method of claim 7 wherein the communication ports include universal serial bus communication ports, serial advanced technology attachment communication ports, Bluetooth communication ports, RJ45 communication ports, RJ11 communication ports, or any combination thereof.