1. Peripherals
    1. A device which has no direct effect on a device's performance, but may be used to provide input and/or receive output.
    2. Three categories of peripheral devices exist:
      1. Input Peripherals
      2. Output Peripherals
      3. Input/Output Peripherals
  2. Wireless Peripherals
    1. In most cases, wireless peripherals connect using Bluetooth or Wi-Fi.
    2. When using a wireless peripheral, follow the same wireless security precautions that you would for any other device.
    3. Make sure that the device is authenticated to the network and using a secure, encrypted connection to protect against eavesdropping.
    4. Examples:
      1. Wireless Keyboards
      2. Wireless Mice
  3. Printers/MFDs
    1. Multi-Function Device (MFD):
      1. Printer/Scanner/Copier Combo
    2. Modern printers are fully-functioning computers that often run Windows or Linux OS. They need to be patched when vulnerabilities arise.
    3. Printers may contain web servers that can be vulnerable if precautions are not taken, and should be carefully secured.
    4. Printer network traffic is vulnerable to eavesdropping. To protect printer traffic from eavesdropping, use TLS encryption.
    5. Printers may retain remnant data from print jobs on their internal hard discs. When disposing of a printer, be sure that its memory is securely wiped to prevent accidental data disclosure.
  4. Storage Devices
    1. External Storage Devices
      1. External storage devices create an attack surface for insiders to perform data exfiltration.
      2. Wi-Fi-Enabled MicroSD Cards
        1. A type of storage device that allows owners to create their own Wi-Fi networks. This may allow an individual to copy information to a storage device without physical access.
        2. Digital Cameras
          1. An example of this technology is found in the Wi-Fi-enabled microSD cards that are popular with digital camera users. These cards allow the copying of photos from a camera to a computer or even directly to a web service without removing the card from the camera.