Digital transformation

How can I tell if someone is monitoring my iPhone?

Phan Van Hoa July 15, 2025 06:33

With the widespread availability of tracking devices and monitoring software, it's no longer uncommon for iPhones to be tracked without your knowledge. Below are some signs to help you detect if someone is secretly monitoring your device.

In the digital age, being spied on is no longer just something you see in movies. Even with an iPhone that seems secure, you can still become the target of prying eyes, or even privacy violations from family, colleagues, or malicious individuals.

The first thing to understand is that there's no way to be 100% certain that you're being tracked, especially if the person doing it is tech-savvy. Sophisticated trackers will often erase their tracks after hacking into your device. However, there are still some indicators and checks you can perform to detect suspicious activity.

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Illustrative image.

Although Apple is highly regarded for its security, no system is foolproof. If you notice anything unusual on your iPhone, don't ignore the warning signs below.

1. Check recently used applications.

A simple but effective method is to check the list of recently opened apps on your iPhone. On iPhones with Face ID, swipe up from the bottom edge of the screen and hold in the middle; if you're using an iPhone with a Home button, double-tap it. The interface will display the apps that are currently active or recently used, in chronological order.

Compare this information to your memory. For example, if you clearly remember playing a game, but the most recent app you saw was Facebook, Safari, or Zalo, it's possible someone opened your phone without you noticing. However, it's important to note that sophisticated trackers may try to "restore the status quo" so you don't realize it.

2. Check the usage time.

Another reliable indicator found in the iPhone's settings isUsage time(Screen Time). You enterSettingnewsUsage timenewsView all activitiesThen, switch to the day view. Here, you'll see detailed statistics about which apps were opened during the day and at what time.

If you notice your device showing activity on Facebook at 10 AM, while you're busy in a meeting and haven't touched your phone, that's a clear sign that your device has been accessed.

3. Check your browser and messaging app history.

Besides app usage and time spent, you should also check your web browser history, messages, or chat app history like Facebook, Messenger, Zalo, etc. For example, messages might show as read even though you haven't opened them, or your search history might contain websites you don't remember visiting.

However, this data can be easily deleted, so you should check regularly to detect any unusual changes promptly.

4. Remember the device state.

One useful skill when you suspect someone has accessed your iPhone is to develop the habit of noting the device's state before taking your eyes off it. For example, if you put your phone in airplane mode but when you return you see that Wi-Fi is on, that could be a sign that someone has just used the device.

Ways to enhance personal security

Here are some ways to protect your device from prying eyes:

Set a strong password:Avoid using easily guessable passwords like 123456, your birthdate, or a four-digit repeating code. Use a password that is at least six characters long, combining numbers and special characters whenever possible.

Activate biometrics:Enabling Face ID or Touch ID security helps prevent unauthorized access to your device.

Lock sensitive apps separately:For sensitive applications containing important personal information, such as financial apps, email, or Facebook, it's advisable to set up a separate passcode for each application in the settings.

Delete sensitive conversations:If you have shared personal information such as your home address, bank card number, account details, etc., please consider deleting it immediately after use.

In summary, being tracked on an iPhone isn't common for most users, but that doesn't mean it's impossible. Recognizing suspicious signs early and implementing simple yet effective protective measures will help you maintain your privacy, even in today's risky digital world.

Take proactive steps to protect yourself, instead of waiting until you lose data before patching vulnerabilities. In the digital age, technology security is an essential part of modern life.

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