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Exam CISA topic 1 question 1819 discussion

Actual exam question from Isaca's CISA
Question #: 1819
Topic #: 1
[All CISA Questions]

An IS auditor is preparing for a review of controls associated with a manufacturing plant’s implementation of industrial internet of Things (IoT) infrastructure. Which of the following vulnerabilities would present the GREATEST security risk to the organization?

  • A. Insufficient physical security around the IoT devices for theft prevention
  • B. Use of open-source software components within the IoT devices
  • C. Constraints in IoT device firmware storage space for code upgrades
  • D. IoT devices that are not using wireless network connectivity
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Suggested Answer: B 🗳️
by 46080f2 at March 3, 2025, 3:01 p.m.

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CCNPWILL
4 days, 8 hours ago
Selected Answer: C
Agreed. C. ive seen this question before on a different infosec test as well.
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46080f2
1 month, 4 weeks ago
Selected Answer: C
Inability to update firmware due to storage constraints leaves hardware vulnerabilities and firmware flaws unpatched, which are frequently exploited in IIoT attacks. For example, vulnerabilities in Mitsubishi and OMRON controllers required firmware updates to mitigate risks like arbitrary code execution or denial of service.
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