Pick up two brands
Under the head refresh, the mobile phone ads match
Party with friends and talk about hot pot
The next second, the APP is full of nearby hot pot restaurant recommendations
Even if you want to change a pair of slippers, the APP can be accurately positioned
It's like an uncertain prophet pushing it for you in time
Have you had this experience too
As if every move is under surveillance?
Today, Xiaobian takes you to reveal the secret
How mobile phones "eavesdrop" on us
01
Invoke phone microphone permissions
Nowadays, when we download and use mobile apps, we often habitually grant mobile phone permissions according to requirements, sometimes including mobile microphones. This makes some apps available, and when we use these apps, there is a risk of being "eavesdropped" through the microphone.
With the right to use the microphone, the mobile app may hear the sound of our conversation or even the sound near the environment where the mobile phone is located without our knowledge.
App in the foreground stable operation, even can be stable radio, to achieve perfect "eavesdropping" (APP switch to the background does not mean that can not record, but after a period of time, the system will often limit the background APP for recording).
When the conditions for "listening" are met, some apps will secretly upload the collected information under the condition of networking, analyze the content, and accurately deliver the ads to us.
02
Big data analytics
In life, when we use mobile phones, it is inevitable to leave some traces, such as geographical location, browser search records, purchase records and a series of information, big data will collect and sort out this part of the information, and then analyze the portrait through the algorithm to judge our possible potential needs, and then select the advertising push that matches it. When the push is more accurate, we will wonder whether it is "eavesdropping" by the mobile phone; conversely, when the push is not accurate, we naturally do not have such an association.
Thus
Mobile phones can indeed "eavesdrop" on us
Obtaining Our Personal Information
So how do we keep our information safe?
Xiaobian has a few tricks for you!
1. Grant the mobile phone use permission of the APP according to the nature of the APP, do not over-authorize the APP, especially the camera, microphone, call, album and other permissions should be carefully accepted.
2. Try not to click on THE URL link of unknown origin, and do not download the APP of unknown origin on the web page, it is recommended to download it in the official application mall.
3. Do not scan the two-dimensional code with unclear content at will, and try not to fill in the questionnaire on the Internet.
4. Different APP settings different passwords, especially financial APPS need to pay more attention to account and password protection.
5. It is recommended to install mobile phone security protection software and conduct regular security inspections on mobile phones.
Source: Popular Science China