Android Privacy Checklist 1. Set passcode: Settings > Security > Screen Lock. 6+-digit PIN or alphanum. passcode. 2. Device encryption: Settings > Security > Encrypt Device 3. Disable cloud-based backup: Settings > Backup & Reset. Switch OFF "Back up my data". (Instead, back-up to own PC.) 4. NO Gmail/Google account sign-in, but if unavoidable, make following Google settings: * Prevent password uploads: Google Settings > Smart Lock for Passwords. Switch OFF. * Opt-out of ad tracking: Google Settings > Ads. Switch ON "Opt out of interest-based ads". * Restrict Google Now: Google Settings > Search & Now > Voice > "OK Google" Detection. Switch ON "From the Google app", others OFF. OR turn off Google Now: Google Settings > Search & Now > Accounts & Privacy. Sign out from Google account. 5. Turn off location and location history: Settings > Location. Switch OFF, switch OFF "Google Location History", delete location history. 6. Lower sleep timeout: Settings > Display > Sleep. Set inactivity timeout to 30 seconds or less. 7. Set auto-lock: Settings > Security. Set "Automatically Lock" to "Immediately". 8. Enable device erase: Settings > Security. Switch ON "Automatically Wipe" (screen lock must be enabled). 9. Limit lock screen notifications: Settings > Sound & Notifications. Set "When device is locked" to "Hide sensitive notification content". 10. Prevent installation of unauthorized apps (necessary?): Settings > Security. Switch OFF "Unknown sources". 11. Apply Android updates (periodically): Settings > About phone > System updates. Source: For privacy and security, change these Android settings right now. 2016-08-22. ZDNet. accessed 2018-07-06. 2018-07-06