Keeping Your Phone Secure: Practical Tips That Actually Work

Your smartphone contains your photos, your messages, your banking apps, your medical information, and access to your email. It knows where you go, who you talk to, and what you search for. If someone gained access to your phone, they would have an incredibly intimate picture of your life.

The good news is that protecting your phone does not require being a computer expert. The security measures that matter most are straightforward, and I will walk you through each one. Let us start with the foundations and work our way up.

1. Use a Strong Screen Lock

This is the single most important security measure for your phone. A screen lock prevents anyone who picks up your phone from accessing your information.

Your Options (From Best to Worst)

1. Face ID or fingerprint: The most convenient and very secure. Your face or fingerprint is unique to you.
2. Six-digit passcode: Much harder to guess than four digits. One million possible combinations versus ten thousand.
3. Four-digit PIN: Better than nothing, but relatively easy to observe or guess.
4. Pattern lock (Android): Convenient but often predictable and can leave visible smudges on the screen.

How to Set Up a Stronger Passcode

On iPhone:

1. Go to Settings
2. Tap Face ID & Passcode (or Touch ID & Passcode on older models)
3. Tap Change Passcode
4. Enter your current passcode
5. When entering your new passcode, tap Passcode Options
6. Choose 6-Digit Numeric Code or Custom Numeric Code for even longer

On Android:

1. Go to Settings
2. Tap Security (or Lock screen)
3. Tap Screen lock
4. Choose PIN and select a 6+ digit number

Tips for Choosing a Good Passcode

• Do not use your birthday, anniversary, or address
• Avoid sequential numbers (123456) or repeated numbers (111111)
• Do not use the same PIN as your debit card
• Consider a number that is meaningful only to you (maybe a childhood phone number)

2. Keep Your Phone's Software Updated

Software updates often include security fixes for newly discovered vulnerabilities. Hackers actively look for phones running outdated software because they know exactly how to break in.

On iPhone:

1. Go to Settings
2. Tap General
3. Tap Software Update
4. If an update is available, tap Download and Install
5. Turn on Automatic Updates so you do not have to remember

On Android:

1. Go to Settings
2. Scroll down and tap System
3. Tap System update
4. If an update is available, follow the prompts to install it

I recommend installing updates when you are at home with good Wi-Fi, preferably overnight so your phone can update while you sleep.

3. Be Careful with App Permissions

When you install an app, it often asks for permission to access various features—your location, camera, contacts, microphone, and more. Many apps request far more access than they actually need.

Questions to Ask Yourself

• Does a flashlight app need access to my contacts? (No.)
• Does a weather app need access to my photos? (No.)
• Does a game need access to my microphone? (Probably not.)

How to Review App Permissions

On iPhone:

1. Go to Settings
2. Tap Privacy & Security
3. Tap any category (Location Services, Contacts, Photos, etc.)
4. See which apps have access and remove permissions from those that should not

On Android:

1. Go to Settings
2. Tap Privacy
3. Tap Permission manager
4. Tap any category to see which apps have access

4. Use Different Passwords for Important Accounts

If you use the same password everywhere, a breach at one company means criminals have access to all your accounts. At minimum, use unique passwords for:

• Your email (this is the master key—password resets go here)
• Your bank and financial accounts
• Your Apple ID or Google account
• Social media accounts

Managing Multiple Passwords

Both iPhones and Android phones have built-in password managers that can create and remember strong, unique passwords for you.

On iPhone: Passwords are saved to iCloud Keychain. Safari will offer to create strong passwords and fill them in automatically. Find saved passwords in Settings → Passwords.

On Android: Google Password Manager works similarly. Chrome will offer to save and create passwords. Find them in Settings → Passwords.

5. Enable Two-Factor Authentication

Two-factor authentication (sometimes called 2FA or two-step verification) means that logging in requires something you know (your password) AND something you have (usually your phone). Even if someone steals your password, they cannot get in without your phone.

Enable It for These Accounts First

• Your Apple ID: Settings → [Your Name] → Password & Security → Two-Factor Authentication
• Your Google account: Go to myaccount.google.com → Security → 2-Step Verification
• Your email: Check your email provider's security settings
• Your bank: Most banks offer this in their security settings

When two-factor authentication is enabled, you will receive a code via text message or an app when logging in from a new device. This is a mild inconvenience that provides major protection.

6. Be Wary of Public Wi-Fi

Public Wi-Fi networks (at coffee shops, airports, hotels) can be risky. Hackers can set up fake networks or intercept data on legitimate ones.

Safer Practices on Public Wi-Fi

• Avoid logging into banking or sensitive accounts on public Wi-Fi
• Make sure websites show the lock icon and "https" before entering passwords
• Consider using your phone's cellular data for sensitive tasks instead
• Turn off "Auto-Join" for public networks so your phone does not connect automatically

7. Enable Find My Phone

If your phone is lost or stolen, this feature lets you locate it on a map, play a sound to find it, or remotely erase it if necessary.

On iPhone:

1. Go to Settings
2. Tap your name at the top
3. Tap Find My
4. Turn on Find My iPhone
5. Also turn on Find My network and Send Last Location

On Android:

1. Go to Settings
2. Tap Security
3. Tap Find My Device
4. Make sure it is turned on

If your phone is ever lost, you can go to icloud.com/find (iPhone) or google.com/android/find (Android) from any computer to locate it.

8. Think Before You Click

Many phone compromises happen because someone clicked a malicious link in a text message or email. Scammers have become very skilled at creating convincing fake messages.

Red Flags to Watch For

• Unexpected messages from delivery services, banks, or government agencies
• Messages creating urgency ("Act now!" "Verify immediately!")
• Links that look slightly off (amaz0n.com instead of amazon.com)
• Requests for personal information, passwords, or payment

When in doubt, do not click the link. Instead, open the company's official app or type their website directly into your browser. See our guide on spotting and avoiding phone scams for more detailed advice.

What to Do If Your Phone Is Stolen

If your phone is stolen, act quickly:

1. Use Find My Phone to locate your device or mark it as lost
2. Change passwords for important accounts (email, banking, social media) from another device
3. Contact your carrier to suspend service and prevent unauthorized calls
4. Report the theft to local police—you may need this for insurance
5. If necessary, remotely erase the phone to protect your data

Security Does Not Have to Be Hard

You do not need to do everything on this list today. Start with the basics: a strong screen lock, software updates, and different passwords for important accounts. These three steps alone will put you ahead of most people.

Then, over time, add the other protections. Enable two-factor authentication when you have a few minutes. Review your app permissions one afternoon. Each step makes you a little safer.

The goal is not perfect security—that does not exist. The goal is to be a harder target than the average person. Criminals look for easy victims, and these simple steps ensure that is not you.