Why do you feel like your phone is being monitored? Will the information you usually talk or search for be pushed to other apps immediately?

In daily life, we have all encountered such a strange phenomenon, that is, we have not searched for something on Taobao or Baidu, but we often mention it in conversations. , but at this time, we find that our mobile phones are actively pushing us things that we have buried in our hearts and have not shown on our mobile phones. This feels very strange. How does the mobile phone know our preferences? A long time ago, someone said that some apps on mobile phones have monitoring functions, and some even directly view your contacts and photo albums on your mobile phone. I find this very surprising, and even think it is a bit unrealistic, but in fact This is a very normal phenomenon. My change of thinking came from this. Zhou Hongyi, the president of 360, once said in an interview that many mobile apps are monitoring people now. Various voice conversations of users, and can accurately locate the user's preferences, and push these things to him on the network to achieve the effect of increasing his own industry. After listening to his words, I changed some of my previous thoughts. No, and some of my own experiences have convinced me that what he said is indeed correct. Before, I wanted to buy a piece of furniture and the furniture I wanted to buy was solid wood furniture, but I didn’t search for it on Taobao. Moreover, I didn’t search on Baidu, but a strange thing happened. When I watched short videos on Douyin, there would be advertisements interspersed in the middle of Douyin. This advertisement turned out to be an advertisement for solid wood furniture. I was very surprised.

I thought it was strange at the time. I checked the search records on Taobao, but I didn’t search for solid wood furniture. At the same time, I didn’t search for solid wood furniture on Baidu. I just called my parents. During the conversation, I said many times that I wanted to buy solid wood furniture and agreed on a time and place to buy it. However, the advertisement on the Douyin APP actually pushed solid wood furniture to me. This is really strange, and it makes me think that I should protect the security of my personal information. Of course, what touches us the most are sales calls. In many cases, we don’t know why, but we receive some inexplicable calls to sell things that are exactly what we need or are considering. This is Very strange. First of all, how does the other party know that they need this thing? Secondly, how does the other party have its own contact information? This inevitably makes people guess that when a mobile phone opens certain APPs and uses these APPs for the first time, they will always ask for some permissions, such as accessing the phone’s photos, accessing the phone’s address book, and the phone recording function. Waiting for these permissions feels baffling. So I personally highly doubt that certain permissions are used to monitor users.