Custom-made malware installed on an offline computer can use a hard drive's LED to send out sensitive data from infected computers to nearby cameras. This Hollywood hacking scenario is now a reality ...

The eyes may be the window to the soul, but the blinking LED lights on a modem are more forthcoming, two researchers revealed this week in a proposed submission to a security journal. Joe Loughry, an ...

This is a flashing led lights circuit powered from a 12V DC power supply that uses the well known 555 IC. Flashing lights have many and varied applications in life. They are used as warning lights on ...