1. External Ports & Drives
   1. Optical (CD/DVD) Drives
   2. eSATA Ports
   3. USB Ports
2. Removable Media Controls
   1. Security controls put in place to protect the data residing on USB flash drives and other removable media, and to protect the systems that they connect to.
   2. Removable media controls include:
      1. USB lockdown in the BIOS and OS
      2. Limited use of USB devices
      3. Scanning of media devices for malware
      4. Encryption of data
      5. Monitoring of connected systems
      6. Auditing of removable media
   3. Reuse and disposal of removable media should be carefully managed.
   4. Security administrators should write policies for the company that dictate how these controls are implemented, educate users about these policies, and maintain their awareness over time.