Apple exposes "new vulnerability" and activates the LED light of the camera into "appearance"

According to foreign media reports, recent security researchers at Johns Hopkins University have discovered new attacks on Macbook and iMac models. By entering custom firmware, you can activate the iSight camera to shoot without turning on the LED lights that come with the camera.

The article in the Washington Post titled "iSeeYou: Disabling the MacBook Webcam Indicator LED" reports that security researchers Matthew Brocker and Stephen Checkoway can camouflage firmware for the iSight camera's master chip, which in turn controls the LED light to turn on when the camera is enabled. .

Apple's iSight camera system uses a technology called "hardware interlock" to bundle the camera sensor with the built-in LED, and the LED is directly linked to the sensor so both are on and off. status. However, the two security researchers re-written the firmware of the iSight camera to bypass the "hardware interlock" when communicating via the USB port, enabling the camera to be activated without the LED light turning on.