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There are potential weaknesses in the implementation of the protocol between the dongle and the copy-controlled software. For example, a simple implementation might define a function to check for the dongle's presence, returning "true" or "false" accordingly, but the dongle requirement can be easily circumvented by modifying the software to always answer "true".
A file with activation key that needs to be installed in same directory as software; similarly, a disc media (often installation disc) may be required as key disk for activation. [1] Code Morphing Hiding intermediate code by means of code obfuscation so that execution logic is not visible. This method does not protect against runtime tracing. [2]
USB flash drives sometimes have a small switch, though this has become uncommon. An example of a USB flash drive that supported write protection via a switch is the Transcend JetFlash series. Secure Digital (SD) cards have a write-protect tab on the left side. Extensively, media that, by means of design, can't operate outside from this mode: CD ...
Secure USB flash drives protect the data stored on them from access by unauthorized users. USB flash drive products have been on the market since 2000, and their use is increasing exponentially. [ 1 ] [ 2 ] As businesses have increased demand for these drives, manufacturers are producing faster devices with greater data storage capacities.
In contrast to SD cards, write protection on USB flash drives (when available) is connected to the drive circuitry, and is handled by the drive itself instead of the host (on SD cards handling of the write-protection notch is optional). A drawback to the small physical size of flash drives is that they are easily misplaced or otherwise lost.
A Hardware keylogger for USB-Keyboards Hardware keyloggers are used for keystroke logging , a method of capturing and recording computer users' keystrokes, including sensitive passwords. [ 1 ] They can be implemented via BIOS -level firmware , or alternatively, via a device plugged inline between a computer keyboard and a computer.
Wavy data track [2] Discs' data track is wavy instead of straight, so only discs with the same wavy-shaped data track will be playable. Extended Copy Protection (XCP) Installs software on the computer after agreement to EULA at the first time the media is inserted, and the software will watch for any ripper software trying to access the CD-drive.
WORM drives preceded the invention of the CD-R, DVD-R and BD-R.An example was the IBM 3363. [1] These drives typically used either a 5.1 in (13 cm) or a 12 in (30 cm) disc in a cartridge, with an ablative optical layer that could be written to only once, and were often used in places like libraries that needed to store large amounts of data.