Mobile technicians sometimes enable developer (or debugging) mode on Android or iOS devices to collect logs or sideload test apps. Which of the following BEST describes a primary security risk created when developer mode remains enabled on a user's phone after troubleshooting is finished?
It places the phone in a persistent low-power state, reducing CPU performance and network throughput.
It limits application installation to the official app store, blocking sideloaded software.
It forces the device to use stronger file-system encryption, preventing third-party forensic access.
It leaves USB debugging and similar tools active, allowing an unauthorized computer to issue system-level commands.
Developer mode unlocks features such as USB debugging and OEM unlocking. These features allow an attached computer to push commands, install apps, or access files that are normally blocked by the mobile OS. If the phone is lost, stolen, or connected to a malicious USB port, an attacker could exploit these capabilities to bypass the lock screen, install malware, or extract data. The other options either describe effects that do not occur (forced encryption, lower performance, restricted app sources.) or would actually increase security.
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What specific advanced settings become accessible when developer mode is enabled?
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How does enabling USB debugging pose a security risk?
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What are some best practices for using developer mode securely?