Which of the following is on example of a smart device security control intended to prevent unauthorized users from gaining access to a device's data or applications?
Authentication is a key security control that prevents unauthorized users from accessing a smart device’s data or applications. It ensures that only authorized individuals can use the device, reducing risks such as data breaches, identity theft, and cyberattacks.
(A) Anti-malware software.
Incorrect.Anti-malware software protects against malicious programs, but it does not control user access to a device.
(B) Authentication. ✅
Correct.Authentication mechanisms (such as passwords, biometrics, PINs, and two-factor authentication) prevent unauthorized access to a device’s data and applications.
IIA GTAG "Managing and Auditing IT Vulnerabilities" highlights authentication as a primary control for protecting smart devices.
(C) Spyware.
Incorrect.Spyware is a security threat, not a preventive control. It is a type of malicious software that steals data from a device.
(D) Rooting.
Incorrect.Rooting (on Android) or jailbreaking (on iOS) refers to modifying a device to remove security restrictions, which increases security risks rather than preventing unauthorized access.
IIA GTAG – "Managing and Auditing IT Vulnerabilities"
IIA Standard 2120 – Risk Management
NIST Cybersecurity Framework – Identity and Access Management
Analysis of Answer Choices:IIA References:Thus, the correct answer is B, as authentication is the most effective security control for preventing unauthorized access to smart devices.
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