How to see if your mobile phone is being monitored?

If you want to know whether your mobile phone is being monitored, you can try the following methods:

1. For mobile phones, after you send a message or make a phone call, check the communication record (communication list) of your own number to see if there are any other suspicious communication records. Generally, people who steal information steal private information through text messages.

It is generally necessary to install a monitoring software to monitor your mobile phone, but such software is hidden and difficult to be detected. If you suspect that your mobile phone is being monitored, you can back up the necessary software and data on your mobile phone, and then restore your mobile phone to the factory settings, so that some unknown or potentially threatening software will be disposed of.

3, the phone will occasionally get stuck, and the button response is slow. If the phone is embedded in a chip and the eavesdropper is listening, it takes 1~2 seconds to press the first key when you pick up the phone, whether playing games or dialing. If the software is implanted, this will not happen.

4. The system security of Android phone is very low, but you can prevent virus by installing security guards. If your root phone doesn't install other strange software, it won't be monitored by others. Installing plug-ins after iphone jailbreak has the risk of being monitored.

Content monitoring

When it comes to telephone monitoring, people usually think that investigators are monitoring the real call audio. In fact, compared with C D R and pen recorders, it is rare for law enforcement departments to monitor audio content by telephone.

There are two reasons: on the one hand, it needs a lot of manpower, and modern computer technology generates call records (that is, metadata), which makes it relatively easy to automatically process and analyze them, so that investigators can quickly identify behavior patterns without having to manually check each record one by one;

On the other hand, the content of the call needs to be translated by a special person, and every minute of the call requires investigators to spend time listening and accurately analyze the meaning of the call.

Like the data monitored by pen recorder and trap tracking device, the content monitoring technology of target call audio uses the telephone switch function of the former to transmit the data to law enforcement agencies in real time. Its principle is exactly the same as that of a pen recorder. The only difference is how telecom operators start monitoring.

In addition to call audio, content monitoring usually includes data from pen recorders and capture and tracking devices, which can be used to distinguish the caller's phone number from the caller's phone number. For mobile phones, it can also include short message content and base station information that can effectively reflect the location of the mobile phone during the call.