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An attacker could, for example, use a social engineering attack and send a "lucky winner" a rogue Thunderbolt device. Upon connecting to a computer, the device, through its direct and unimpeded access to the physical address space, would be able to bypass almost all security measures of the OS and have the ability to read encryption keys, install malware, or control other system devices.
Versions of the device have been reported to deliver a pulse of around negative [4] 200 V. [2] [5] This greatly exceeds the normal voltage the USB host adapter is designed to accept; the intention is that the device will destroy it (and perhaps the southbridge which it often forms part of). In many cases, this will render the computer inoperable.
Early models were connected to the serial port on computers so the interface circuitry had to convert between the ISO/IEC 7816 card voltage levels and the RS-232 voltage levels used by the computer's serial port. More recent models use a USB connection to the computer. The simplest of earlier devices was the Phoenix interface. More ...
The source sends the content to be displayed. Examples include set-top boxes, DVD, HD DVD and Blu-ray Disc players, and computer video cards. A source has only an HDCP/HDMI transmitter. [4] Sink The sink renders the content for display so it can be viewed. Examples include TVs and digital projectors.
Standard USB hub ports can provide from the typical 500 mA/2.5 W of current, only 100 mA from non-hub ports. USB 3.0 and USB On-The-Go supply 1.8 A/9.0 W (for dedicated battery charging, 1.5 A/7.5 W full bandwidth or 900 mA/4.5 W high bandwidth), while FireWire can in theory supply up to 60 watts of power, although 10 to 20 watts is more typical.
Hardware hacking has allowed this Nokia N9 smartphone to run with Xfce, a desktop interface on an postmarketOS, an alternative operating system.. The hacking of consumer electronics is a common practice that users perform to customize and modify their devices beyond what is typically possible.
A regional lockout (or region coding) is a class of digital rights management preventing the use of a certain product or service, such as multimedia or a hardware device, outside a certain region or territory.
The cost of these USB drives can be significant but is starting to fall due to this type of USB drive gaining popularity. Hardware systems may offer additional features, such as the ability to automatically overwrite the contents of the drive if the wrong password is entered more than a certain number of times.