Overview
Before you sell, recycle, or hand off a phone, laptop, or desktop, securely removing your personal data protects your privacy and reduces risk. A thorough wipe means backing up what you need, signing out of accounts, and using the device's factory-reset or secure-erase tools so a new user can't recover your files or accounts.
There are a few common methods: a built-in factory reset, encrypt-then-wipe, or physically removing and replacing storage media. Which you choose depends on the device, its condition, and how sensitive the data is.
Key takeaways
- Back up anything you want to keep before you wipe — deleted data is usually unrecoverable.
- Sign out of accounts, remove SIM/SD cards, and disable device-linked services before transferring ownership.
- Encrypt first or use a secure-erase tool to prevent data recovery from a wiped drive.
How it works
Factory resets remove user data and restore defaults, but the effectiveness varies by platform and storage type. Solid-state drives (SSDs) and newer phones often handle resets differently than older magnetic hard drives.
Encrypting the device before wiping scrambles stored data so leftover remnants are unreadable without the encryption key. On many phones and modern operating systems, encryption is built in and can be enabled from settings.
For extra assurance, you can remove the drive and perform a secure wipe with specialized software or replace the drive entirely and install a fresh operating system.
What it may cover (and what it may not)
Factory resets typically remove app data, accounts, and settings, and they restore the device to the state it was in when new. However, some systems may leave low-level logs or residual data on the storage medium.
Encryption before wiping usually prevents recovery of any readable files, even if a forensic tool tries to scan the drive. Physically destroying or removing the storage is the most certain option for extremely sensitive data.
For guidance related to managing device fleets or planning for redundancy and security, see Device Management, Redundancy Planning, and Mobile Security.
Common mistakes to avoid
Do not skip backups. Once you reset a device, most data cannot be restored except from your copies.
Don't forget to sign out of cloud services and remove device registrations such as Find My iPhone or Google account locks; these can prevent a new owner from activating the device.
Avoid assuming a quick factory reset is enough for very sensitive data — consider encryption or physical removal of the drive instead.
Questions to ask an agent
- How should I secure and insure devices while in storage or transit?
- Do I need coverage for replacing drives or data-recovery services?
- Are there policy considerations for refurbished equipment or bulk device disposal?
For related coverage topics on less common equipment, you can review Watches, Clocks and Clockwork-Operated Devices Insurance for examples of specialized device policies.
Next steps
1) Back up photos, documents, and any data you need. 2) Remove SIM and SD cards and sign out of accounts. 3) Enable encryption if available, then perform the factory or secure wipe suited to the device. 4) Consider replacing or removing the storage drive for the highest assurance.
If you want professional help reviewing device handling or insurance concerns, talk to an agent about options that match your needs.
Frequently Asked Questions
How do I back up my phone before wiping it?
Use the phone's built-in backup tools or a cloud service to save contacts, photos, and app data; verify the backup completed before wiping.
Will a factory reset remove everything?
A factory reset removes user data and settings, but residual data may remain on the storage medium unless you encrypt first or use a secure erase.
Is encrypting the device necessary?
Encrypting before wiping adds a strong layer of protection and is recommended when the device holds sensitive information.
What should I do with the old hard drive if I don't want to risk recovery?
Physically destroy the drive or remove it and keep it in secure storage; alternatively, replace it before transferring the device.