CompTIA A+ Core 2 (220-1202), Domain 2, Objective 2.8 focuses on mobile remote protections — the software features and policies that let a user or administrator secure, locate, back up, or wipe a smartphone or tablet after it has already left their hands. These controls matter because a mobile device is far more likely to be lost, stolen, or left behind than a desktop, yet it often carries email, saved passwords, payment credentials, photos, and access to corporate systems. Physical security ends the moment the device is gone; remote protections are what remain.
In this article you'll learn how remote wipe works and its limits, how locator applications find a missing device, how remote backup keeps data recoverable, and how failed-login-attempt restrictions protect a device that is actively being attacked. You'll also see how these features fit together in a real support workflow and how they map to the exam's expectations.
Remote Wipe
Remote wipe is the ability to erase the contents of a mobile device from a distance, typically by sending a command through a web portal or a mobile device management (MDM) console. When the device next connects to the internet, it receives the command and performs a factory reset, deleting user data, accounts, and settings. This is the last line of defense: if a phone cannot be recovered and may contain sensitive data, wiping it prevents that data from falling into the wrong hands.
There are two broad flavors of remote wipe. A full device wipe resets the entire device to factory condition. A selective wipe (sometimes called a corporate or enterprise wipe) removes only managed work data — corporate email, apps, and profiles — while leaving the owner's personal photos and apps intact. Selective wipe is common in bring-your-own-device (BYOD) environments, where an employer has the right to protect company data but not to erase an employee's personal property.
Technicians must understand the practical limits. Remote wipe only executes when the device is powered on and connected to a cellular or Wi-Fi network. A thief who keeps the device offline, powers it down, or removes the SIM can delay or prevent the command from arriving. Because of this, wipe is most effective when paired with strong device encryption: on a modern, encrypted phone, even data that survives is unreadable without the passcode. Encryption effectively turns any full reset — local or remote — into a cryptographic erase, since discarding the key makes the stored data unrecoverable.