A user's mobile phone has become sluggish. A systems administrator discovered several malicious applications on the device and reset the phone. The administrator installed MDM software. Which of the following should the administrator do to help secure the device against this threat in the future? (Choose two.)


A. Prevent a device root.
B. Disable biometric authentication.
C. Require a PIN on the unlock screen.
D. Enable developer mode.
E. Block a third-party application installation.
F. Prevent GPS spoofing.