A sales employee reports that after a recent trade show, her company-issued Android phone repeatedly prompts her to install unfamiliar applications. During inspection, you notice that USB debugging is enabled under Developer Options and mobile-data usage has spiked. Which action will MOST directly mitigate the current security risk while keeping all user data intact?
Perform a factory reset and then restore the latest cloud backup.
Replace the battery and calibrate the charging cycle.
Decrease the screen-timeout value to limit unauthorized access time.
Turn off Developer Options to disable USB debugging and other advanced features.
Leaving Developer Options enabled-especially USB debugging-makes it easier to sideload malicious APKs, capture device data, or issue ADB commands without the user's knowledge. Turning Developer Options off immediately removes USB debugging and other advanced settings, closing the avenue the unknown apps are using. A factory reset would also work but is more disruptive; battery or display settings offer no security benefit in this case.
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What is USB debugging in Android?
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How does turning off Developer Options mitigate security risks?
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What are APKs, and why are they relevant to device security?