MagicWolfi wrote a reply on GoForge - A Renesas FPGA Board.bench2004 liked Multipurpose BLE touchpad HID.alexleffell liked Energy Independence While Travelling.alexleffell liked Printon Turbine - 3D printed pelton turbine.GreenPAK™ has added a new project titled Low-Power Button Replacement with Force-Sensitive.Nikola Secerovski liked Mechwarrior 4 Simulator Cockpit Panel.GreenPAK™ has added details to Low-Power Button Replacement with Force-Sensitive.joeltroughton wrote a reply on wESP32: Wired ESP32 with Ethernet and PoE. ![]() Rhys79 on Windows 98 For Spaceships? Not Quite!.Joshua on Hacking The RF Protocol Of An Obscure Handheld Game.sjm4306 on Pocket Radio Powered By Tiny Microcontroller Online store in India for graphics card, motherboard, processor, solid state drive, gaming cabinet, keyboard, mouse, power supply, gaming accessories etc.Petter Olofsson on Headphone Cable Trouble Inspires Bluetooth Conversion.Gravis on Pico Makes Capable Logic Analyzer.no on Pico Makes Capable Logic Analyzer.Lewis on Companies Rumored To Harvest Washing Machines For ICs.Unraveling The Hackaday Podcast Hidden Message 5 Comments Posted in computer hacks Tagged air gap, cybersecurity, firewall, hacking, hard drive Post navigation ![]() However, there are also plenty of “air gaps” that contain more copper than air, and require correspondingly less effort. From cooling fans to practical uses, we’ve seen air gaps overcome. We weren’t born last night, and this is not the first time we’ve seen information transmission over air gaps. Moreover, the group’s experiments show that “sensitive data can be successfully leaked from air-gapped computers via the HDD LED at a maximum bit rate of 4000 bit/s (bits per second), depending on the type of receiver and its distance from the transmitter.” Notably, this speed is “10 times faster than the existing optical covert channels for air-gapped computers.” Since the hard drive light can be activated without kernel access, this exploit can be enacted without root access. Disregarding whether that is a good idea or not, the easiest way to disable the LED light is most likely opening your laptop case up and unplugging the LED ribbon cable. Conveniently, this light blinks “randomly” even without the help of a virus: it’s the hard drive activity indication light.Īll jokes aside, this is a massive improvement over previous methods in more ways than one. ![]() But fret not, a group of researchers has found a new light to blink (PDF warning). If you worked in a high-security lab and your computer screen started to blink at a rapid pace, you might be a little concerned. However, all of these methods all have one problem in common: they are extremely noticeable. Researchers in the past have exfiltrated information through air gaps by blinking all sorts of lights from LEDs in keyboards to the main display itself.
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