Your Android phone probably has more security controls than you realize.

The problem is that having security features available does not mean they are all configured in a way that fits your needs. Some settings may have been changed when you installed an app. Others may have been enabled years ago and never reviewed again. A few important protections may depend on your Android version or phone manufacturer.

That is why a security review is worth doing occasionally.

You do not need to become a security expert or install several security applications. Android already provides tools for checking device security, app permissions, account access, updates, theft protection, and other important settings. On Android 13 and later, supported devices can provide a combined Security & privacy area that brings several of these checks together. Older versions may separate Security and Privacy into different sections.

The goal is not to make every setting as restrictive as possible.

The goal is to find settings that are unnecessarily weak, permissions that no longer make sense, unfamiliar access, missing updates, and protections that could help if your phone is lost or stolen.

Here is a practical way to review them.

Start With Android’s Security and Privacy Overview

Open Settings and look for Security & privacy.

On supported Android versions, Google says this page can provide an overview of your security and privacy status, including warnings and recommendations. If something needs attention, the page can show a warning such as Device is at risk along with information about the issue.

Do not simply look for a green or reassuring status and stop there.

Treat the overview as your starting point.

Read the individual sections.

Look at app security.

Check device lock.

Review account security.

Check system updates.

Look at device-finding options.

Then inspect privacy permissions.

The overview is useful, but it cannot replace a manual review of the settings that matter most to you.

Check Your Screen Lock First

Your screen lock is one of the most important physical barriers protecting the information on the phone.

Open the lock-screen or security settings and check what method is being used.

A strong PIN or password is generally preferable to something easily guessed.

Google’s current theft-protection guidance recommends a strong PIN with six or more digits or a complicated pattern. Your exact available options depend on the device.

Think about how someone who knows you might guess your PIN.

A birthday, repeated digits, simple sequence, or another obvious number is not a good choice.

If your phone supports fingerprint or face unlocking, those can make secure access more convenient. But do not forget that the underlying screen lock remains important because the phone may require it under certain circumstances.

Also check whether the lock screen itself is revealing too much information.

A phone can be locked while still displaying sensitive notification content.

Review What Appears on the Lock Screen

Lock-screen notifications can expose information without actually unlocking the phone.

Depending on your settings, someone holding your locked phone might see message previews, authentication notifications, email subjects, calendar details, or other private information.

Android provides controls for what notification content is shown on the lock screen, although the exact menu varies between devices. Google’s current theft-protection guidance specifically recommends controlling lock-screen notification content because notifications can reveal information that could help an unauthorized person access your data.

You do not necessarily need to hide every notification.

Instead, consider whether you want the content visible.

Seeing “New message” is very different from seeing the actual message.

This is particularly worth reviewing if your phone is regularly used around coworkers, family members, customers, or other people.

Check Whether Find Hub Can Locate Your Phone

A security plan should account for losing the physical device.

Google’s current Android theft-protection guidance says Find Hub can help you find, secure, or erase a lost Android device remotely. On supported setups, you should make sure you are signed into your Google Account and that Location and Find Hub settings are enabled before the device is lost.

This is important because a protection feature you never configured is not very useful after the phone disappears.

Open the relevant device-finding settings and confirm that the feature is available and active.

Do not wait until you lose the phone to discover that an important setting was disabled.

Also consider what you would actually do if the phone vanished.

Could you locate it?

Could you remotely lock it?

Could you erase it if necessary?

Do you know which account controls the device?

Those questions are part of your security setup too.

Review Android’s Theft Protection Features

Recent Android versions include additional theft-protection features on supported devices.

Google’s current documentation lists protections such as Theft Detection Lock, Offline Device Lock, Remote Lock, Identity Check, and other protections designed to reduce the damage caused by theft. Some of these features require Android 15 or later and availability varies by device.

Open your phone’s theft-protection settings and see which options are available.

Do not assume that every Android phone has the same collection of features.

If your phone supports Theft Detection Lock, for example, it can automatically lock the screen when it detects behavior associated with theft. Offline Device Lock can lock the screen after the device has been offline for a period of time.

Identity Check provides another layer on supported devices by requiring stronger identity verification for certain sensitive actions when you are outside trusted places.

These features are worth reviewing because they address a different problem from malware.

Your phone does not have to be hacked for your information to be at risk.

Someone physically obtaining an unlocked or poorly protected device can be a serious security event.

Check Google Play Protect

Open the Google Play Store, tap your profile picture, then open Play Protect and its settings.

Google Play Protect checks apps and devices for harmful behavior. It checks apps from Google Play before download, periodically scans installed apps, and can also check apps installed from other sources. Google recommends keeping Play Protect turned on.

Make sure Scan apps with Play Protect is enabled.

If you install apps outside Google Play, pay particular attention to the additional protection available for unknown apps.

Google also provides an Improve harmful app detection option that can help Play Protect detect potentially harmful apps installed from outside Google Play.

This does not mean that every app outside Google Play is malicious.

It means that installing software from unknown sources deserves more caution because the normal app-store screening process may not apply in the same way.

Check Whether Your Phone Is Play Protect Certified

While you are in Play Protect settings, check the device certification status if the option is available.

Google says you can find this under Google Play Store → Profile → Settings → About → Play Protect certification.

A certification issue does not automatically mean someone has hacked your phone.

It is a separate status that can affect how Google services and app compatibility work.

If your phone shows that it is not certified, investigate the specific issue instead of assuming it means malware.

Review App Permissions Instead of Trusting Them Forever

This is one of the areas most worth reviewing manually.

An app may have requested access to your camera, microphone, contacts, location, photos, calendar, or other information months ago.

You may have approved it without thinking much about the request.

That does not mean the permission still makes sense today.

Android allows you to review permissions for individual apps and, on supported versions, review permissions by category. Google provides controls for permissions such as camera, microphone, location, contacts, and calendar.

Open Settings → Apps → [app] → Permissions, or use your phone’s Permission Manager.

Start with sensitive permissions.

Camera

Ask yourself whether the app genuinely needs camera access.

A video-call application probably has a reasonable reason.

A simple flashlight application should make you question why it needs camera access.

Microphone

Think about whether the app needs to record audio.

If you rarely use an app’s voice features, consider whether permanent access is necessary.

Location

Location deserves extra attention because some apps may request access when they are not actively being used.

Where supported, Android can offer options such as allowing location only while using the app, asking each time, or denying access.

Do not automatically choose the strictest option for every app.

Choose the least access that still allows the app to perform the function you actually need.

Use the Privacy Dashboard to See What Apps Actually Accessed

Permission settings tell you what an app is allowed to access.

The Privacy Dashboard can help answer a different question:

Which apps actually accessed sensitive permissions?

Google says the Privacy Dashboard can show which apps accessed certain data, which permissions they used, and when that access occurred. On Android 13 and later it can show activity for the previous seven days; Android 12 provides a shorter history for supported permissions.

Open Settings → Security & Privacy/Privacy → Privacy Dashboard, depending on your device.

Look through camera, microphone, location, and other available categories.

You are not necessarily looking for a single suspicious entry.

Look for behavior that does not make sense.

If an application you rarely use has recently accessed a sensitive permission, ask why.

If you recognize the app and the access matches something you did, there may be nothing wrong.

The important part is understanding what is happening.

Pay Particular Attention to Accessibility Access

Accessibility services deserve careful consideration because they can provide powerful capabilities to apps.

Some legitimate applications genuinely need accessibility features.

But because these capabilities can be powerful, you should know exactly which apps have access.

Open your device’s Accessibility settings and review enabled services.

If you see a service you do not remember enabling, do not ignore it.

Find out what application installed it and why it needs the access.

Do not disable an accessibility service blindly if it is required by a legitimate tool you rely on. Instead, verify the app and its purpose first.

Google’s Advanced Protection documentation also highlights accessibility services as an important security area because malicious apps can abuse them; Advanced Protection restricts accessibility services to verified tools on supported configurations.

Review Apps With Special or Powerful Access

Regular permissions are not the only thing worth checking.

Android devices can have settings for powerful capabilities such as:

• Installing unknown apps
• Device administrator access
• Displaying over other apps
• Notification access
• Accessibility services
• VPN access
• Usage access

The names and locations vary between manufacturers.

The point is to review access that can significantly change what an application is capable of doing.

For example, an app that can appear over other apps may create opportunities for deceptive interfaces.

An app with notification access may be able to read notifications.

An unknown app installer can allow software from outside normal app-store channels to be installed.

None of these permissions automatically means an app is malicious.

But they deserve more scrutiny than ordinary access that an app obviously needs.

Check Apps You Do Not Remember Installing

Open your complete app list and slowly review it.

Do not only look at the apps on your Home screen.

The app drawer and Settings app list may contain applications you rarely see.

Ask:

Do I recognize this app?

Did I install it?

Does it have a legitimate purpose?

Do I still use it?

Does the developer name make sense?

Does the app have unusual permissions?

Was it installed recently?

If something is unfamiliar, do not immediately delete it if you depend on the phone for important services.

First identify it.

Search the exact application name through a trusted source or check its Play Store listing.

If an app appears suspicious and you do not need it, removing it may be appropriate.

Review Apps Installed Outside Google Play

If you have ever installed an APK manually, review those apps carefully.

This includes software downloaded from websites, file-sharing services, forums, or other sources.

Sideloading is not automatically unsafe. There are legitimate reasons people install apps outside Google Play.

But it changes the risk calculation.

Google says Play Protect checks apps from sources outside Google Play as well, and it can warn about potentially harmful applications.

The safest approach is to know exactly where an APK came from and why you installed it.

If you no longer know why an unknown-source app is installed, that is a good reason to investigate it.

Check Android and Security Updates

A security review is incomplete if the phone is running old security software.

Open Settings → System → Software updates or the equivalent menu on your device.

Google’s current guidance recommends checking Android updates, security updates, and Google Play system updates when dealing with potentially unsafe Android software.

The exact update schedule depends on your phone manufacturer and model.

You may see separate information for the Android version, Android security update, and Google Play system update.

Record what your phone currently reports.

If updates are available, review them and install them through the normal device settings rather than downloading random update packages from websites.

Check Your Google Account From the Phone

Your phone’s security is closely connected to your Google Account.

Even if the phone itself is protected with a strong PIN, an attacker who gains access to your account can potentially access information beyond the physical device.

Open your Google Account’s security settings and review recent security activity.

Google’s current account-security guidance recommends checking recent security events and looking for activity you do not recognize.

Do not panic when you see an unfamiliar-looking event.

Google may show sessions or activity that are actually yours.

Investigate the details before deciding something is malicious.

But if you confirm that an activity was not yours, follow Google’s account-security steps immediately.

Review Devices Signed In to Your Google Account

This is an especially useful check.

Google allows you to review computers, phones, and other devices where your account is currently signed in or has recently been used.

Look through the device list.

Do you recognize everything?

Are there old phones you no longer own?

Is an old computer still listed?

Is there a device name you do not recognize?

If a device is lost, sold, or no longer yours, sign it out where appropriate.

Google explains that multiple sessions with similar device names can sometimes represent the same physical device, so do not assume that every duplicate entry represents a separate attacker.

This is why reviewing the details matters.

Check Your Google Account Recovery Options

Account recovery is part of security.

Open your Google Account’s security settings and check your recovery phone number and recovery email.

Make sure they still belong to you.

Google’s Security Checkup can provide personalized recommendations, including recovery options and other account-security improvements.

An outdated recovery address is easy to overlook.

It may not cause a problem today, but it can become a serious problem when you are locked out of your account.

Do not add a recovery method just because an online guide recommends one.

Use recovery methods you control and can reliably access.

Review Two-Step Verification

If your Google Account contains your email, photos, contacts, documents, backups, or other important information, two-step verification deserves attention.

Google provides multiple second-step options, and the exact choices available depend on your account and devices.

Review your current methods.

Do you still have access to them?

Do you recognize the devices?

Do you have an appropriate backup method?

If your only second factor is a phone that could disappear, consider how you would recover the account if that phone were lost.

The purpose of a second factor is to make unauthorized access harder without making legitimate recovery impossible.

Consider Passkeys Where They Make Sense

Passkeys are another security option worth understanding.

Google says passkeys can allow you to sign in using your fingerprint, face scan, or device screen lock instead of entering a password. It also notes that biometric data used for the passkey remains on the device rather than being shared with Google.

You do not need to convert every account immediately.

But when a service you trust supports passkeys and the setup fits your needs, they can reduce dependence on passwords and provide strong phishing resistance.

Be especially careful when creating passkeys on shared or borrowed devices.

If you lose a device containing a passkey or accidentally create one on a shared device, Google provides controls for removing that passkey from the account.

Review Your Connected Apps and Services

Your Google Account may have connections to third-party apps and services.

These can be easy to forget.

Review which applications and services have access to your Google Account.

Look for services you no longer use.

Look for old applications from previous phones.

Look for anything you do not recognize.

Removing a connection can stop future access, but it does not necessarily mean that information already shared with the third-party service has been deleted.

That distinction matters.

If you stop using an application, consider whether you also need to delete your account with that service.

Check SIM Protection

Your phone number can be valuable to an attacker because it may be involved in account recovery and authentication.

Android supports SIM protection through a SIM PIN on supported devices and carriers.

Google’s current theft-protection documentation recommends protecting the SIM with a PIN so that someone who obtains the SIM cannot simply move it to another device and use your number without authorization.

Be careful here.

Do not guess a SIM PIN repeatedly.

Your carrier may have a default PIN or specific instructions, and entering the wrong code too many times can cause the SIM to require a PUK code.

If you are unsure, check your carrier’s official documentation before changing the setting.

Review Lock-Screen Access to Sensitive Features

A locked phone should not expose unnecessary capabilities.

Look through settings related to lock-screen notifications, quick settings, device controls, wallet access, and other features available before unlocking.

The exact options vary significantly between Android versions and manufacturers.

Ask yourself:

Can someone see private notifications?

Can they access sensitive controls without unlocking?

Can they interact with information that you would rather keep private?

You do not need to disable every lock-screen convenience.

The goal is to decide deliberately what you are comfortable exposing.

Check Whether Your Phone Is Being Managed

If this is a personal phone, check whether it has work or school management installed.

A work-managed device can have security policies that you cannot change yourself.

If you see a work profile, device-management application, or administrator control that you do not recognize, investigate it before removing anything.

If it is a company-owned or school-managed phone, do not attempt to bypass management controls.

Instead, contact the organization responsible for the device.

Review VPNs and Security Apps

Open your network or VPN settings and check whether any VPN is active.

A VPN is not automatically a security problem.

Many legitimate VPN services exist.

The concern is an unfamiliar VPN or security application that you do not remember installing.

A VPN can route network traffic through its service, so you should know who operates it and why it is installed.

Likewise, do not assume that installing several antivirus, cleaner, privacy, or security apps automatically makes your phone safer.

Multiple overlapping security tools can create confusion.

Android’s built-in protections are already an important part of the device’s security model, including Play Protect.

Check Browser and Website Permissions

Your security review should not stop at Android settings.

Open your main browser and review website permissions where available.

Look at sites that have permission to use:

• Location
• Camera
• Microphone
• Notifications
• Pop-ups or redirects

If a website no longer needs a permission, remove it.

This is especially useful if you frequently visit unfamiliar websites or previously allowed permissions without thinking about them.

A website permission is not the same thing as an Android app permission, so reviewing both gives you a better picture.

Check Your Password Manager

If you use Google’s Password Manager or another password manager, review your saved accounts.

Look for:

• Reused passwords
• Weak passwords
• Old accounts
• Security alerts
• Accounts you no longer use

A secure phone cannot compensate for a compromised password used across several important accounts.

Your email account deserves particular attention because it may be used to reset passwords for other services.

Do Not Ignore Old Accounts

Old apps and accounts create a security problem that is easy to overlook.

Maybe you downloaded an app three years ago, created an account, and forgot about it.

Maybe you no longer use the service but the account still exists.

If the account contains personal information and uses an old password, it may still represent unnecessary exposure.

Where practical, delete accounts you no longer need.

If deletion is not available, remove unnecessary personal information and secure the account with a unique password.

Look for the Weakest Link, Not the Most Settings

After reviewing all these settings, you may discover several things that could be improved.

Do not try to change everything at once.

Prioritize the biggest risks.

For most people, the highest-value improvements are likely to include:

A strong screen lock.

Current Android and security updates.

Play Protect enabled.

Reasonable app permissions.

No unfamiliar apps with powerful access.

Find Hub configured.

Theft protections enabled where supported.

Secure Google Account recovery.

Two-step verification.

Awareness of devices signed into the account.

Limited sensitive information on the lock screen.

A protected SIM where appropriate.

The exact priority will depend on how you use the phone.

Someone who stores financial information and work documents on the device may have different priorities from someone who mainly uses it for calls, photos, and messaging.

What to Do If You Find Something Suspicious

Do not immediately start deleting everything.

First, document what you found.

Take a screenshot if appropriate, without sharing private information publicly.

Write down the application name, permission, account session, device, or security event.

Then determine whether you recognize it.

If you find an unfamiliar Google Account device or suspicious security event, use Google’s account-security tools to investigate and secure the account. Google specifically recommends reviewing unfamiliar devices and suspicious security events.

If you find an unfamiliar app, identify it before uninstalling it.

If you believe an account has actually been compromised, prioritize securing the account rather than simply deleting an app.

And if the phone has signs of serious compromise that you cannot confidently diagnose, consider getting professional assistance rather than experimenting with random security tools.

Create a Small Security Checklist

You do not need to perform this entire review every day.

A periodic check is enough for most people.

A useful checklist is:

Device

Check screen lock.

Check lock-screen notification privacy.

Check Find Hub.

Check theft protection.

Check SIM protection.

Apps

Check Play Protect.

Review unfamiliar apps.

Review sensitive permissions.

Review Privacy Dashboard.

Check accessibility and other powerful access.

Software

Check Android updates.

Check security updates.

Check Google Play system updates.

Account

Review recent security activity.

Review signed-in devices.

Review recovery methods.

Review two-step verification.

Review passkeys.

Review connected apps.

Network

Review VPNs.

Review browser permissions.

That is enough to catch many problems before they become serious.

How Often Should You Review Android Security Settings?

You do not need to obsess over them.

A quick review every few months is reasonable.

You should also review them after major events.

For example, check your settings after:

• Installing several new apps
• Changing your Google Account
• Losing a phone
• Recovering from a suspicious login
• Giving an app unusual permissions
• Moving from one phone to another
• Installing software from outside Google Play
• Joining a work or school device-management system

Security settings can change as your phone and habits change.

The important thing is to make the review a habit rather than a reaction to a problem.

Your Android Security Audit Does Not Need to Be Complicated

A secure Android phone is not created by turning on every setting you can find.

It comes from understanding the important protections and checking them periodically.

Start with the basics.

Use a strong screen lock.

Keep Android and security components updated.

Keep Play Protect enabled.

Review sensitive permissions.

Use the Privacy Dashboard to understand actual access.

Remove apps you no longer need.

Investigate powerful access such as accessibility and unknown-app installation.

Protect your Google Account.

Review signed-in devices.

Configure Find Hub and theft protection.

Think about what your locked phone reveals.

And make sure you could recover your accounts if the physical device disappeared.

The most useful security review is not the one with the longest checklist.

It is the one that helps you find the settings that could actually matter if something goes wrong.

Sources and Further Reading

Google’s current Android documentation explains the Security & Privacy overview and the security areas it can surface, including Play Protect, device lock, account security, updates, device finding, and privacy permissions.

Google’s Play Protect documentation explains app scanning, harmful-app detection, unknown-source apps, and Play Protect certification.

Google’s Privacy Dashboard documentation explains how to review which apps accessed sensitive permissions and when.

Google’s current theft-protection documentation covers Theft Detection Lock, Offline Device Lock, Remote Lock, Identity Check, Find Hub, SIM protection, and lock-screen notification privacy, with availability varying by Android version and device.

Google’s account-security documentation explains how to review suspicious security events and devices with account access.

Google’s passkey documentation explains how passkeys work with Android screen locks and biometrics and how to remove passkeys associated with devices you no longer trust.

Frequently Asked Questions

How often should I check my Android security settings?

For most people, a review every few months is reasonable, with an additional check after installing unfamiliar apps, changing important account settings, losing a device, or responding to a suspicious security event.

What is the most important Android security setting?

There is no single setting that protects everything. A strong screen lock, current security updates, Play Protect, sensible app permissions, secure Google Account settings, and theft/device-finding protections work together.

How can I tell if an Android app has too many permissions?

Look at what the app actually does and compare that purpose with the permissions it requests. An app that needs camera access for video calls makes more sense than an unrelated utility requesting the same access. Android’s Permission Manager lets you review permissions by app or permission category.

Should I turn off all app permissions to make my phone safer?

No. Some apps need permissions to perform their intended functions. The better approach is to give an app only the access it needs and choose more restrictive options, such as “only while using the app,” when they are appropriate and available.

Is Google Play Protect enough to protect my Android phone?

Play Protect is an important built-in protection, but it is not a substitute for good account security, updates, careful app installation, strong authentication, and sensible permissions. Google recommends keeping Play Protect enabled.

What should I do if I find an unfamiliar device signed into my Google Account?

Do not assume immediately that it is an attacker. Review the device/session details first. If you confirm that you do not recognize it, sign it out and follow Google’s account-security guidance for unfamiliar activity.