A lost or stolen phone is more than an inconvenience. It can expose your email, banking details, social media accounts, and security verification apps.
This article is based on guidance from SANS Security Awareness: Your Smartphone: A Gold Mine for Cybercriminals.
Use a Strong Screen Lock
Your screen lock is your first line of defense against unauthorized access.
Use a passcode, PIN, fingerprint, or facial recognition to secure your device, and set your phone to lock automatically after a short period of inactivity.
A strong screen lock helps prevent someone from viewing your email, apps, contacts, and sensitive files if your phone is lost or stolen.
Enable Device Tracking and Remote Wipe
Most smartphones include built-in tools that can help you locate, lock, or erase a missing device.
Apple devices offer Find My, while Android devices offer Find My Device. These services help you:
- Locate your phone on a map
- Make the device ring so you can find it nearby
- Lock the device remotely
- Erase your data if recovery is not possible
Taking a few minutes to verify these features are enabled can save a lot of stress later.
Turn On Automatic Updates
Cybercriminals often look for weaknesses in software.
Device manufacturers and app developers regularly release updates that fix security weaknesses. Delaying updates can leave your phone exposed to risks that already have available fixes.
Enable automatic updates for both your operating system and mobile apps to receive security improvements as soon as they are available.
Download Apps Carefully
Apps provide useful tools and services, but they can also introduce security risks.
Only download apps from trusted sources like the Apple App Store or Google Play Store. Before installing a new app:
- Review ratings and user feedback
- Check what permissions the app requests
- Consider whether those permissions make sense
For example, a simple flashlight app should not need access to your contacts or microphone. If an app requests more information than it reasonably needs, consider using a different app.
Back Up Your Device Regularly
Losing a phone can be frustrating, but losing your data can be even worse.
Enable automatic backups so your photos, settings, apps, and documents can be restored easily if your device is lost, stolen, or damaged.
A recent backup significantly reduces downtime and helps you get back up and running quickly with a replacement device.
Learn More
Read the full guide: Your Smartphone: A Gold Mine for Cybercriminals.
Related Resources
Need more help? These resources offer additional guidance on staying safe online and protecting University information: