Know about something Hardware keylogger and keylogging devices.

The Hardware keylogger are devices attached with your computer or electronic devices, used for stealing data and information from the devices in which it is attached. Hardware keyloggers are used for keystroke logging, a method of capturing and recording computer users' keystrokes, including sensitive passwords.
They can be implemented viaBIOS-level firmware, or alternatively, via a device plugged inline between a computer keyboard and a computer. They log all keyboard activity to their internal memory.

Hardware keyloggers does not need system access for installation, Invulnerable to security scanners, Stores over a billion keystrokes because of the Fact That they Posses Internal memory of upto 2GB. Also they are easy to use and 100% safe to USE. Because there is nothing installed on the hard drive, it is hardly detectable by all anti-spy and eraser software.

All hardware keylogger devices have to have the following:

• A micro-controller : This interprets the data stream b/w the keyboard and computer, processes it, and passes it to the non-volatile memory.
• A non-volatile memory device, such as flash memory : This stores the recorded data, retaining it even when power is lost.

Types of hardware keyloggers:

• A Regular Hardware Keylogger is used for keystroke logging by means of a hardware circuit that is attached somewhere in between the computer keyboard and the computer.
• Wireless Keylogger sniffers collects packets of data being transferred from a wireless keyboard and its receiver and then attempt to crack the encryption key being used to secure wireless communications between the two devices.
• Firmware  A computer's BIOS, which is typically responsible for handling keyboard events, can be reprogrammed so that it records keystrokes as it processes them.
• Keyboard overlays a bogus keypad is placed over the real one so that any keys pressed are registered by both the eavesdropping device as well as the legitimate one that the customer is using.

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