CAS-002 · Question #284
A system administrator has a responsibility to maintain the security of the video teleconferencing system. During a self-audit of the video teleconferencing room, the administrator notices that…
The correct answer is C. Bluetooth is an unsecure communication channel. Wireless-enabled speakers and microphones in a secure conference room introduce Bluetooth as an attack surface, which is inherently less secure than wired connections and vulnerable to eavesdropping.
Question
A system administrator has a responsibility to maintain the security of the video teleconferencing system. During a self-audit of the video teleconferencing room, the administrator notices that speakers and microphones are hard-wired and wireless enabled. Which of the following security concerns should the system administrator have about the existing technology in the room?
Options
- AWired transmissions could be intercepted by remote users.
- BBluetooth speakers could cause RF emanation concerns.
- CBluetooth is an unsecure communication channel.
- DWireless transmission causes interference with the video signal.
How the community answered
(25 responses)- A8% (2)
- B4% (1)
- C88% (22)
Why each option
Wireless-enabled speakers and microphones in a secure conference room introduce Bluetooth as an attack surface, which is inherently less secure than wired connections and vulnerable to eavesdropping.
Wired transmissions are significantly harder to intercept remotely and are considered more secure than wireless connections; this is not the primary concern with the described wireless-enabled setup.
RF emanation concerns (TEMPEST) relate to unintentional electromagnetic leakage from electronics, not the primary security vulnerability associated with Bluetooth-enabled audio devices.
Bluetooth is an inherently insecure short-range wireless protocol vulnerable to attacks such as bluejacking, bluesnarfing, and passive eavesdropping. In a video teleconferencing room where sensitive conversations occur, Bluetooth-enabled audio devices create an unauthorized interception vector. NIST SP 800-121 specifically documents Bluetooth security risks and recommends disabling Bluetooth when not required in sensitive environments.
Wireless interference with video signal is a technical performance concern, not a security concern, and does not relate to the confidentiality risk introduced by wireless-enabled microphones and speakers.
Concept tested: Bluetooth security risks in sensitive environments
Source: https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-121r2.pdf
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