Quick Answer
The answer is to implement TLS/SSL encryption for all camera communications. This is the most critical security improvement for IoT cameras using HTTP video streams because HTTP transmits video data in plaintext, meaning any attacker on the network path can capture and view the stream without any decryption. TLS/SSL provides encryption, integrity, and authentication, directly protecting the confidentiality of the video data in transit. On the Certified Ethical Hacker CEH exam, this scenario tests your understanding of encryption in transit versus encryption at rest, and it often appears in questions about network sniffing or man-in-the-middle attacks. A common trap is to suggest VPNs or stronger passwords, but the core issue is unencrypted HTTP, so HTTPS is the direct fix. Memory tip: think "HTTP = Huge Text Plainly Transmitted," so always add the 'S' for security.
This CEH practice question tests your understanding of wireless, iot and cloud security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization deploys a fleet of IoT cameras that communicate with a central server over the internet. The cameras use HTTP to send video streams. What is the most critical security improvement to protect the video data in transit?
Require strong passwords on the camera web interface.
Why wrong: Does not encrypt traffic.
Use a site-to-site VPN between the cameras and the server.
Why wrong: IoT devices may not support VPN.
Use certificate pinning to prevent man-in-the-middle attacks.
Why wrong: Still requires TLS.
Implement TLS/SSL encryption for all camera communications.
Encrypts video streams.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Implement TLS/SSL encryption for all camera communications.
The most critical security improvement is to implement TLS/SSL encryption (HTTPS) for all camera communications. HTTP transmits video data in plaintext, allowing any attacker on the network path to capture and view the video stream. TLS/SSL provides encryption, integrity, and authentication, directly protecting the confidentiality of the video data in transit.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Require strong passwords on the camera web interface.
Why it's wrong here
Does not encrypt traffic.
Use a site-to-site VPN between the cameras and the server.
Why it's wrong here
IoT devices may not support VPN.
Use certificate pinning to prevent man-in-the-middle attacks.
Why it's wrong here
Still requires TLS.
Implement TLS/SSL encryption for all camera communications.
Why this is correct
Encrypts video streams.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
EC-Council often tests the distinction between authentication/access controls (passwords, certificate pinning) and encryption (TLS/SSL), leading candidates to choose a security measure that does not actually protect data in transit.
Detailed technical explanation
TLS 1.2 or 1.3 (RFC 5246, RFC 8446) uses a handshake to negotiate symmetric encryption keys (e.g., AES-256-GCM) and authenticate the server via X.509 certificates. In IoT deployments, using TLS with mutual authentication (mTLS) can also verify the camera's identity, preventing unauthorized devices from sending data. A real-world scenario is the Mirai botnet, which exploited default credentials and unencrypted HTTP on IoT cameras to compromise them.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Wireless, IoT and Cloud Security — This question tests Wireless, IoT and Cloud Security — Read the scenario before looking for a memorised answer..
The correct answer is: Implement TLS/SSL encryption for all camera communications. — The most critical security improvement is to implement TLS/SSL encryption (HTTPS) for all camera communications. HTTP transmits video data in plaintext, allowing any attacker on the network path to capture and view the video stream. TLS/SSL provides encryption, integrity, and authentication, directly protecting the confidentiality of the video data in transit.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CEH practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CEH exam.
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