The application to find an iPhone how it works. How to find a lost iPhone

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(Activation Lock), first introduced in iOS 7, has become a very effective addition to Find My iPhone. Thanks to it, the device owner can not only track a lost or stolen device, but also block it remotely. However, there is also a flip side to the coin.

In contact with

Indeed, after the release of iOS 7, a number of police departments in the US and European countries reported a significant decrease in the level of theft of Apple devices, which is good news. However, a new type of scammers have appeared who use Activation Lock for extortion. Simply put, they entered the used market, offering used iPhones at tempting prices, and then remotely locking smartphones, demanding an additional fee to disable Find My iPhone. (Activation locks). Moreover, another type of fraud has emerged - for a relatively small advance payment, some “hackers” offer to remotely remove the lock from any Apple device.

To avoid becoming a victim of criminals when purchasing a used iPhone, iPad or iPod Touch, you need to make sure that the function Find iPhone is disabled on this device.

At the beginning of 2017, a convenient section for checking Activation Lock on iOS devices disappeared from the Apple website. The goal was good (the fight against cybercrime), but the lives of ordinary users were seriously ruined. How can you now check whether the iPhone you want to buy on Avito was stolen or not?

As it turned out, not everything is so bad - there is a workaround. All you need is the IMEI or serial number of your iPhone or iPad, as well as access to the Apple support site.

How to check iPhone or iPad binding to iCloud (Activation Lock status)

This instruction does not require entering your Apple ID! The method works from any country in the world.

1 . Unfortunately, the capabilities of the Russian Apple support site do not allow you to determine the binding to iCloud. Use this proxy link to open the Apple support site "from Germany". If the specified link eventually turns out not to be working, open the Apple technical support site https://getsupport.apple.com/ through any anonymizer site and follow the steps described below.

2 . Select Europe as your region and Germany as your country.

If necessary, you can change the language from German to English at the bottom of the screen.

3 . In the list of devices, select iPhone (or iPad, if that's what you need).

4 . On the next page, specify as the problem - Repair & Physical Damage.

5 . To clarify, please indicate - Buttons not working.

6 . Choose a section Send in for Repair, and then point Home button.

7 . Enter the serial number or IMEI of your iPhone or iPad and click on the arrow.

The smartphone today is used not only as a means of communication. It stores a lot of useful and important information. Theft or loss of a device can result in a serious problem. The location of a switched-on phone can be easily tracked using special applications. The situation is different when the device is turned off or discharged. Let's look at how to find an iPhone.

Is it possible to find a lost or stolen iPhone?

The hardest thing to track is an iPhone with a dead battery. The latest generation operating system has a built-in function for tracking the device. Before turning off, the iPhone sends an SMS indicating its location. But you can use the function only after it is activated. This way you can easily track your lost iPhone, which works on iOS 8 with the battery disconnected.

How to find an iPhone if it's turned off

The easiest way to find an iPhone is through the website.

In the service menu, select the item. A city map will open. In the top tab "All devices" select the lost iPhone. Its location will be displayed on the screen.

If you move the cursor to a point on the map, an auxiliary menu will open. Must be activated "Lost Mode". You can turn on the sound on your iPhone (if it is somewhere close) or erase all data. If debit or credit card data was saved in the settings, then activating the mode will temporarily block the ability to make any transactions from these accounts through the application store.

As long as it's activated "Lost Mode" On iPhone, you can lock your iPhone using a random dial of numbers. If at this moment the device is connected to the network, it will immediately be blocked until the code is reset. If the phone is offline, a message indicating the location will be sent to the specified email address.

The quality of the maps in the application leaves much to be desired. Sometimes a city with a population of 200,000 people can be located at the intersection of two roads. You can try to find your iPhone by switching the map to hybrid or satellite mode.

IN "Lost Mode" You can also send a message to your iPhone asking for the device to be returned.

Find iPhone by IMEI or phone number

IMEI- this is a unique phone code. it is assigned to the device by the manufacturer. It is almost impossible to change this code yourself. To find it out, just type the key combination *#06# .

There are special services online for searching for an iPhone via IMEI. The principle of their operation is similar to that described earlier. The user specifies a unique iPhone code and activates a search using geolocation data. In practice, finding an iPhone this way is almost impossible because:

It is extremely rare, but attackers still manage to change IMEI.
To search for an iPhone, you need access to special equipment and operator databases. Only law enforcement agencies have such information.

The only way to find an iPhone using a code is to place an ad on LoSToleN service. This is the IMEI database of stolen devices. Their owners publish information about the lost phone and indicate the reward amount. Participants in the secondary market often check devices for the presence of information in the database.

How to search for a phone using the Find my iPhone function

As mentioned earlier, the iPhone has a device search program. First of all, it must be activated. To do this, in the phone settings (the gear-shaped button is located on the main screen), click on Apple ID. It's located at the top of the menu and includes your iPhone's username and photo (if you've previously uploaded one). You must log in to the system by entering iPhone login and password.

In devices that operate on old version of iOS, the Apple ID section is missing. The function will be performed activate through, located in the second section of the menu.

Going to the section Apple ID/iCloud, scroll the menu to . The slider located opposite should be activated (shine green). You also need to activate the option.

If the function was not previously activated, then you will not be able to find the device using it. But you can protect information. To do this you should:

Change your account password on iPhone. Without Apple ID authorization it is impossible to obtain data from cloud storage and use iMessage or iTunes.
Change passwords for all accounts installed on iPhone applications.
Notify your carrier about the loss of your iPhone. It will disable the account, preventing you from making calls, sending messages, or using data.

Special cases

1. If in the application the device lights up in mode "offline", it means it is not connected to the network. That is, it will not be possible to carry out any manipulations remotely. All that remains is to wait until it is connected to the network. A message will be sent to the email address specified during registration to confirm that Lost Mode has been activated.

2. If the screen was locked, you won't have to wait long. It is enough to reset the settings to factory settings or reflash the phone. After this, the device will be reconnected to the network and the owner will be able to block it.

3. If the iPhone was not turned on Touch ID, the lost mode is not activated, the attacker will be able to use the device. At the same time, he will not be able to disable the iTunes search and restore function. As well as changing Apple ID.

Special applications and programs for finding iPhone

To find a lost device, you can use a third-party application, for example, Find My Friends. The program works via cloud iCloud service. Its main purpose is to quickly determine the location of iPhone owners through GPS And 3G those subscribers whose numbers are listed in the phone book.

The application also expands the program's capabilities. You can exchange data about the location of an object more than between two devices. Information about location data will be sent to any iOS device. The application also has a built-in parental control function. The program works with contact cards. The user will be able to continue the fast path to his friend. This function is especially useful if the guest does not know the way, and the inviter cannot personally meet and accompany the guest.

For security purposes, the user will be able to configure "time window", during which other subscribers will receive information about his location. The interval can vary from several hours to several weeks. Once completed, the data transfer will be completed. The user can also completely "hide" from the surrounding world. The application also provides a function "following", with which you can send information about your movement to another subscriber over a certain period of time.

That is, using the program Find My Friends You can easily find your lost phone. The application is available for devices with iOS 5 and higher. Let's take a closer look at how to use the application.

On devices with iOS 9 and above the program is installed automatically. To work on all other devices, it must be downloaded from the application store. When you log in, you are automatically logged into the program with the same login. The application can be operated using the function through the cloud storage site.

The program will only work between devices on which the application is installed. You can only add contacts with iPhone, iPad or iPod by number or email address. The recipient must confirm the request to provide location data. If contacts in the phone book were added from another Apple ID, then you will have to drag them to the new account:

1. “Find Friends” > “Me”.
2. “Move friends from another Apple ID” > “Move friends”.
3. Log in to the system using your previous ID.

To hide your location from other subscribers, you need to log in to the program, go to the section "I" and disable the function.

To turn off the display of information about your movements, you need to go to the menu "Settings"> Login>scroll to and deactivate the option.

If you can’t find your iPhone, it’s better to block it to prevent an attacker from gaining access to the user’s personal data. To do this, the program should My iPhone enable lost mode.

Next, follow the instructions on the screen to create a password code. If you are trying to block the iPhone of one of your family members who does not have a code installed, then you need to log in Apple ID on behalf of the owner of the lost phone.

A couple more methods

If none of the above options help, then you can use these methods.

Contacting the police

You can write a report about the theft of your device to law enforcement agencies. In this case, the document will have to indicate iPhone serial number. It is indicated:

on the iPhone case;
on iTunes;
in the Apple menu on your Mac;
in the "About This Device" subsection of the iPhone's "Settings".

If the device is far away, then you need to find the original packaging and look at the barcode or receipt from the store.

To track a device by serial number, law enforcement officials may ask the owner to disable the lost mode or erase data from the cloud storage or device. If you perform any of these actions, the user will lose remote access to the machine. However, iPhone owners need to know how to erase data from the device.

If the function is activated on the device, you need to log in to the system, select the device and click on the button "Erase", and then "Delete your account". As a less drastic measure, you can change your Apple ID password. The user information will not be deleted, but the new owner of the iPhone will not be able to use it.

To change your password, go to appleid.apple.com and click on the link "Forgot ID". At the next stage, you need to enter your account login and select the password recovery option: answer the security question, receive a message by email, or request a data recovery key.

Contact the operator

If the likelihood of finding the iPhone is low, then you should report the loss to your cellular operator. The number will be blocked immediately. If scammers try to make any purchases in the app store, these charges can be appealed.

Notifying friends on social media networks

Call your number

You can find the device by calling a lost number. There is always hope that you simply forgot your phone in a crowded place and there is a decent person nearby who will return your lost device.

Apple mobile devices with iOS versions above 5.0 are equipped with an excellent security mechanism - the “Find” function. The function allows you to remotely block a lost/stolen gadget and find out its location. Thanks to Find iPhone, the number of reported thefts of Apple devices around the world has decreased significantly - in London, for example, by as much as 50%.

Russian users, alas, have not yet “tried” Apple’s “anti-theft” function - many of them do not believe in its effectiveness; Some even suggest that this is America’s way of keeping tabs on the Russians. In fact, the search mechanism proposed by Apple is effective. It makes sense to abandon paranoid prejudices in order not to shed tears after the theft of an expensive device.

The Find My iPhone service allows the user to:

Find out the geographical location of the lost gadget. You can only find out where the device is if it is connected to the Internet.
Remotely delete all contents of your smartphone.
Activate “Lost Mode” on the device. It is impossible to use such a gadget - you can only sell it for spare parts and then for next to nothing.
Remotely trigger a loud beep on your smartphone to make searching easier.

The function can be used only if it is activated on the mobile device itself and if the owner of the gadget remembers the password for his iCloud account.

After losing an Apple smartphone, the user can go to www.icloud.com using the data of the account that is activated on the device, select the “Find iPhone” section and see a city map on which the location of the gadget is marked with a green dot.

The owner of the lost “mobile phone” can only turn on “Lost Mode” and go looking for it. It’s better to bring a friend with you who also has an Apple device – but only with the Find My iPhone app installed. Through the application, you can play a signal on a lost device.

More detailed instructions on using Apple’s “anti-theft” technology are available in our article dedicated to this.

How to enable the Find My iPhone feature?

To set up the Find My iPhone function on your mobile device, do the following:

Step 1. Go to the section " iCloud" V " Settings» iPhone.

Step 2. Enter your Apple ID and password if you haven't done so before.

Then click " To come in».

Step 3. Agree to merge the data stored in iCloud and on your iPhone - or refuse if you want to separate the “flies from the cutlets”. Also allow iCloud to use your iPhone's location.

These two requests will appear on the screen sequentially, one after the other.

Step 4. Scroll down the screen and find the " Find iPhone».

Move it to the active position.

Step 5. A notification will appear on your screen indicating that Find My iPhone will be activated. Click " OK».

Step 6. It remains to check whether the “Find iPhone” function is enabled in “ Location services" Go to " Settings" and follow the path " Privacy» — « Location services».

In chapter " Location services" there is a subsection " Find iPhone» - visit him.

Make sure that the toggle switch of the same name is activated.

It is very important to carry out this check. If Find My iPhone doesn't use geolocation, you won't be able to see your lost device on the map.

What is Activation Lock?

A useful add-on for Find My iPhone called " Activation Lock" (or " Activation Lock") first appeared on iOS 7. The addition allows you to “tightly” block a mobile device linked to an Apple ID account - that is, actually turn the smartphone into a “brick”. Neither flashing nor restoring in DFU mode will help to revive the gadget.

“Activation Lock” is, in fact, the “Lost Mode” that was mentioned earlier and which can be enabled on the iCloud website.

With the current " Activation lock»You will have to enter your Apple ID every time you need to do the following:

Deactivate Find My iPhone.
Delete information from the gadget.
Re-activate the smartphone.

That is, an attacker who stole a gadget will find that he has a device in his hands with which he cannot do anything. The smartest thing for a thief to do would be to contact the owner and, pretending to have found the gadget, offer to return the device for a symbolic reward.

The user needs to be careful and activate “Lost Mode” only after the Apple ID password has been written down in all kinds of notepads and computer programs. If he loses the password or forgets it, he himself will not be able to return the device to functionality. Under such circumstances, service centers, Apple support, and even computer services will be powerless.

Conclusion

A person who has activated the Find My iPhone function on his mobile phone will have to take the confidentiality of his Apple ID credentials very seriously. If the data ends up in the hands of attackers, they will be able to block the gadget and, by changing the iCloud password, blackmail the owner of the mobile device. This method of fraud is not “out of the realm of science fiction”; Recently, more and more users are suffering from such illegal actions.

iOS devices, in particular the iPhone and iPad, have always been and remain one of the most desirable mobile devices, not only for legal owners, but also for criminals who illegally acquire items that do not belong to them. How to protect yourself from theft or how to find an iPhone from a computer and without it? Read "under the cut".

If after reading the instructions you still cannot find your smartphone, then iPhone 6, for example, can be purchased at a discount from our partners, the iCom store.

Today's instructions will be devoted to security issues; you will find out what the “ Find iPhone" (in original " Find My iPhone"), how to set it up, how to find an iPhone from a computer and without it, what to do immediately after buying a new iPhone first of all.

Apple has always paid maximum attention to security issues, even taking into account the fact that anti-virus programs are not developed for Mac computers; they are simply not needed due to some features of the operating system itself and Apple’s approach to its distribution. So in the case of the iOS mobile operating system, with each new version, protecting your iPhone or iPad from theft or loss becomes increasingly easier. Even with the most unfavorable outcome (intentional theft), it is possible to find the device; this is quite simple to do, unless, of course, the attacker is “not in the know”; fortunately, there are not many of them.

To help you find your iPhone, whether it was stolen or lost, a special application included in iOS called “ Find iPhone". It is responsible for searching for the iPhone and not only it in case of loss, so the very first thing after purchasing a new device is to enable and configure this function. Read below to learn how to do this using an iPhone as an example.

Find My iPhone at a Glance

Find My iPhone first appeared in iOS 5.0, the presentation of which took place as part of the WWDC developer conference June 6, 2011. Since its introduction in iOS, “Find iPhone” has been separated into a separate application, which had its own icon, interface and a unique set of capabilities.

On Apple's official website, in the "iCloud Help" section, the Find My iPhone application says:

Find My iPhone helps you locate and protect your iPhone, iPad, iPod touch, or Mac if your device or computer is lost or stolen.

Currently Find My iPhone app available not only from under the iOS shell, but also became part of Apple’s proprietary cloud service called iCloud. You can launch and use the application from any Internet browser on a personal computer, tablet or smartphone, the platform does not matter. Besides everything else, the application can be downloaded and installed from the AppStore, it is distributed free of charge.

Application Find iPhone in the App Store

Find My iPhone allows you to:

Determine the geographic location of the device on the World map;
Remotely play a beep on your device to find it;
Use the special lost mode to block the device and track it on the map;
Remotely erase all personal data from the device.

In order to take advantage of all the features of the application, in the settings of your iOS device or Mac computer (the function has recently also been available for Apple computers) Find My iPhone must be enabled.

But before that, you need to set up synchronization of the device with the iCloud cloud service. We will certainly talk about it another time, but for now let’s move on to practice.

How do I enable Find My iPhone?

On iPhone with iOS 5.0 or higher, go to Settings – iCloud and turn the switch " Find iPhone" to position " Included«;

Finding the switch find iPhone

Enter Apple ID login and password and confirm the inclusion of the function and, as a result, the automatic activation of the geolocation service, tap on the button “ OK«.

Activation Lock for Find My iPhone

With the release of iOS 7, a new feature was added to “Find iPhone” - “ Activation Lock". This feature allows you to completely block a device linked to an Apple ID account; even flashing the device will not help. It turns on automatically when you set up Find My iPhone.

When lock is enabled, the iPhone user will be required to enter their Apple ID credentials when:

turning off “Find iPhone” on the device;
deleting an iCloud account in the device settings;
erasing personal data and reactivating the iOS device.

If Find My iPhone is enabled on your iPhone or iPad and, as a result, Activation Lock is enabled, even when updating/restoring your iPhone, after selecting your language, country, and connection to a cellular network, you will need to enter your Apple ID information to activate the device. Without this, it will be impossible to use the device, another incentive to return a stolen or found iPhone to its rightful owner, even for a fee.

The iCloud instructions say:

"If you forget your password and can't recover it, you'll lose access to your Apple ID account and may not be able to use or reactivate your device."

If for any reason you forget your login or password for your Apple ID, it will be impossible to activate your iOS device without it, even if you contact Apple support! If you have access to the email to which your Apple ID is registered, you can recover the password, but recovery does not always work. Be careful.

How to find iPhone from computer?

Let's say you've lost your iPhone and can't find it on your own. Using a personal computer with an Internet connection and the iCloud web interface, this problem can be solved quite simply.

Let us remind you once again that you can determine the location of an iOS device only when it is connected to the Internet.

Note: If at the time of search the lost or stolen device is “offline”. The map will show your last known location. Information will be available within 24 hours.

The Find My iPhone app lets you receive email notifications when your device comes online, for this:

In the application, in the “My Devices” menu, click on the name of your device;
On the page that opens, check the box next to “Notify me about a find.”

How to find iPhone via iCloud without a computer?

Find iPhone via iCloud possible not only from a personal computer, this can be done from any other mobile device (smartphone, tablet, laptop), the only condition is active internet connection. The search procedure is completely identical.

From any available device, go to iCloud.com, sign in, and access the Find My iPhone app. In the “My Devices” menu, select your device and you’re done!

It may also happen that you lost your iPhone within your home or room, and your home address will be marked on the map when determining the location of the iPhone. No problem, in this case it will be even easier to find your iPhone through iCloud.

1 On your computer, tablet, or smartphone, go to the iCloud web interface;

2 Go to the Find My iPhone application;

3 If your device is connected to the Internet, in the “My Devices” menu, select your iOS device. In the window that appears with the name of the device, click on “Play sound”. The server will send a request to the designated gadget to automatically play a loud signal.

How to block a stolen iPhone?

Find My iPhone app lets you lock your iOS device and will not allow an attacker to use it, and even flashing from or will not help.

1 In the “My Settings” menu, select the desired device;

2 In the window that appears, click on “Lost Mode”.

3 If the device is online, you will be asked to send a notification to the device with a contact phone number and text. If desired, enter a phone number where we could contact you and click “Next”;

4 In the next window, enter the text of the message that will be sent to the device and click “Done”.

After completing this operation, a text message and the specified phone number will be sent to the device. On top of that, if you set a lock password in Settings -> General -> TouchID and password, in order to unlock a device that has Lost Mode enabled, you will need to enter the specified password.

For those devices that are not on the network, when you enable Lost Mode, you can remotely set a lock password, without entering which an attacker will not be able to unlock the device after logging onto the Internet.

How to erase personal data from a stolen iPhone?

Find My iPhone has another great feature in its arsenal, with just one click. You can completely erase (delete) personal data from a stolen or lost device. In order to erase personal data you must:

1 In the Find My iPhone app on your computer or on your tablet or smartphone, select the stolen iPhone from the My Devices menu;

2 In the window that appears, click on “Erase iPhone” and confirm erasing the data.

3 Erasing data on an iPhone can be done both on a device that is online and on an unconnected iOS device. In the latter case, data erasure will be performed only when the device appears on the network.

Remember, if you initiate erasure of data on the device, it will no longer be traceable.

How do I turn off Find My iPhone?

Disabling the geolocation and remote control function of an iPhone or iPad is not difficult; you can do this on Windows or Mac, on a tablet or smartphone (the operating system does not matter). We have described 4 methods; it is difficult to recommend one specific one, because... There are different situations, we will describe the simplest one again.

On an iPhone with iOS 5.0 or higher, go to Settings -> iCloud and turn the switch next to “Find My iPhone” to the “Off” position;
In the window that appears asking you to enter your Apple ID password, enter the correct password. Ready!

To disable Find My iPhone, you must do any of the following:

Disable Find My iPhone;
Delete iCloud account in device settings;
Remove the device from your Apple ID account on iCloud.com.

A necessary condition when performing these actions is to enter data from your Apple ID account: login and password.

The function is disabled, the iPhone will not appear on the map, it will not be possible to lock it, send a sound signal or send a message. Turn off Find My iPhone only if absolutely necessary, rather than deprive your iPhone of protection.

Special thanks to the developers for notifying the email address registered as an Apple ID that the “Find iPhone” function on the device connected to iCloud was disabled.

The only time you will have to disable Find iPhone, and do it yourself, is when restoring your iPhone.

The Find iPhone application has a wide range of important features, it will certainly help in case of loss or theft of the device, it can protect the device from unauthorized use, although there is a small “BUT”.

Important – only works when connected to the Internet

Find My iPhone will only be able to locate your device if it is connected to the Internet. If the iPhone is offline, the map in Find iPhone will display its last known location and only for 24 hours.
In order for an iPhone to play sound, activate Lost Mode, or erase all personal data, the device must also be online.

If your iPhone is not currently connected to the Internet, and you have enabled Lost Mode through Find My iPhone in iCloud, it will only be activated when the device appears online.

We really hope that our instructions were useful to you and will help you protect yourself from the loss of your iPhone, iPad and Mac computer or their unauthorized use in the event of theft. First of all, turn on “Find iPhone”, set a lock password in the settings of your iOS device, these simple manipulations will certainly help you in the future.

Video tutorial for the Find My iPhone app

Purchasing new gadgets from Apple, such as iPad and iPhone, is always a very joyful event, especially if you are a fan of this corporation. Absolutely every tablet or smartphone model from the company of the same name gives its fans a huge number of very pleasant and quite useful surprises in the form of completely new games, programs and updates.
But if you lose your device, the joy of purchasing it can turn into disappointment.
It is especially worth noting that among the latest software innovations from Apple is a radically updated My Friends application, which was specially created for devices that run on the iOS operating system. This new program is already different:

updated appearance;
special adapted design;
the general style of the seven (there are extremely thin icons, and the design is in light colors);

When the smartphone is turned on, it is extremely easy to find or track

The main task of the updated “My Friends” program is, first of all, to determine on the map itself the geoposition of people who use iPhone, iPad and iPod touch gadgets, and so on. In principle, it is a very narrowly focused service, although it is quite a useful application for these devices. Simply put, when any two people have installed the “My friends” applications on their own devices, you just need to activate them, using their own accounts. The program independently recognizes where the other owner of the smartphone is when the phone is turned on.

Thanks to this function, you can find out where absolutely anyone is. This application is also convenient because you can simply find your iPhone, but only if it is turned on. You can also use the icloud.com application, which allows you to find your iPhone. Important: if a person has lost his iPhone, then you can find it this way only if it is turned on and working.

In addition, you can find and find out where your iPhone is if it works in absolutely any mode. The main thing is that the settings are not reset. Because if the settings were reset, then the phone will automatically log out of your AppleID.com account.

Improved Find iPhone feature

Immediately after you have purchased an iPhone mobile smartphone for yourself or as a gift, be sure to ask the seller’s consultant to install the iPhone Search program. Thanks to this function, you can also find out where anyone is. By the way, you can also find someone else’s iPhone under the same conditions - it is turned on or working in offline mode.

First, you need to make sure that you have an original iPhone and it is configured properly so that the geolocation function is active (go to the settings menu, then go to privacy and there will be a Geolocation menu).

It is especially worth noting that you must activate iCloud.com, after which you must immediately activate the “Find iPhone” service in the iCloud.com tab located in the system settings. Naturally, this procedure is not able to protect you from losing or having your smartphone stolen.

We would like to clarify again that the special iCloud.com service finds a lost iPhone only if it is turned on! It's quite simple and doesn't require much effort - you'll just see exactly where the iPhone is at the time of the request. What you need to do for this:

go to iCloud.com
select the desired contact.

After this, a special map will show the exact coordinates of the place where your iPhone is located, if it is turned on.

In addition, to find your lost iPhone, you can simply create a special security password on icloud.com. For those who have lost their iPhone, it will be very important to know that a person, thanks to the site icloud.com, can completely erase absolutely all information from his own iPhone in just a few minutes, and also, if a person has lost a smartphone, he can send an SMS message to my iPhone, which I lost somewhere. But most importantly, thanks to icloud.com, a person who has lost this smartphone can set up an “icloud emergency siren”, which will continue until the moment when the real owner does not turn it off, in order to find out and possibly hear it somewhere nearby. The iPhone sounds very loud and at the same time, it sounds in any state - even when turned off.