Toutiao Software's conference room.
Han Bin rushed to Toutiao Software with Li Qin and Bao Xing and was arranged to rest in the conference room.
Han Bin was browsing the page of Toutiao Software on his phone.
For the past few days, Han Bin had been studying the software whenever he had time.
Among them, there was one thing that left a deep impression on him. He felt that he was being monitored by the software.
In the beginning, the software would push similar news whenever he saw something on Toutiao Software. This was fine and Han Bin could accept it.
However, things changed after that. He used other software on his phone, such as search software, WeChat, etc., which would also be monitored by Toutiao Software.
He used Gaud Map to search for Baiziyuan District. In the end, when he opened Toutiao Software, there was a lot of information related to Baiziyuan District.
For example, when Han Bin chatted with Wang Ting on WeChat and mentioned the food and beverage industry, Toutiao Software would push related news.
This was not the scariest part. Sometimes, Han Bin felt that he had only mentioned something during a chat and Toutiao Software would push it. Han Bin even suspected that the software could eavesdrop on data through the microphone.
Of course, this was only a suspicion.
Han Bin himself could not remember whether he had authorized Toutiao Software to turn on the microphone function when he installed the software. If it could really eavesdrop on data through the microphone, it would be a little scary.
Sometimes, Toutiao Software would even prompt him to authorize the video function. Han Bin immediately rejected it. This was equivalent to carrying a portable camera.
After using it for the past few days, Han Bin had thoroughly understood the software and thought of a new way to investigate.
Knock knock. There was a knock on the door and Ni Yuanfeng pushed the door open and walked in.
As soon as he entered, Ni Yuanfeng showed an apologetic look. "Officer Han, I'm really sorry to have kept you waiting. I did have something to do just now and was delayed."
Han Bin smiled. "It's okay."
Ni Yuanfeng saw that Wang Xiao did not come and secretly let out a sigh of relief. He sat at the conference table. "Officer Han, what orders do you have today?"
"I don't dare to give you orders, but I have a few questions to ask you."
"Go ahead."
"Does your software spy on the owner's privacy?"
Ni Yuanfeng was stunned for a moment. He did not expect Han Bin to ask such a question. He quickly denied, "No, of course not."
"Why is it that when I browse some products on Taobao, Toutiao software will also have similar push links?"
Ni Yuanfeng explained, "Officer Han, this is not the snooping of our Headline software, but a product of the era of big data. Nowadays, data is interconnected, and your browsing data on other platforms will be recorded. Then, they will be able to accurately place information stream advertisements in Headline. This is a form of information stream advertising. This has little to do with Headline. Headline is just providing a platform for advertising."
"The era of big data?"
"Yes."
"Yesterday, I searched for self-driving travel on Baidu, and the headlines sent me a lot of RV related videos. How do I explain this? I don't think Baidu will advertise on your software. "
"This …" Ni Yuanfeng hesitated. "We do have some cooperation with Baidu."
"What kind of cooperation? How can we betray the privacy of our customers?" Han Bin asked.
"No, no …" Ni Yuanfeng wiped the sweat from his forehead. "There are some agreements between our two companies, and it's really not convenient to tell the public."
Ni Yuanfeng changed the topic. "Officer Han, you're not here for this matter today, right?"
"You're right. This matter is really not under my jurisdiction. At most, I will delete your company's software after this. I'm here today to ask for your company's help. "
Ni Yuanfeng thought to himself, Your attitude is really different.
However, he did not dare to say it out loud. He just wanted to send this god of plague away as soon as possible. "Tell me, what do you need me to do? I will do my best to help."
"I'm quite interested in your big data. It's good to use it to solve cases." Han Bin stood up and paced around. "Help me use big data to accurately locate an account."
"Do you know the name of this account?"
"If I knew, I wouldn't have bothered to tell you so much." Han Bin thought about it. It was necessary to explain it to him. Only when the other party understood what he meant could he better assist him.
"I went back and studied the account information of the people involved in the case that you provided. I found that the Summer Hail account used by the murderer has only been in contact with two people recently. One is Lu Jingfang, and the other is Wang Siyu. He didn't see any other information, which is very unusual. "
"First of all, he knows Lu Jingfang, so it's reasonable for him to contact Lu Jingfang directly. However, Wang Siyu is different. Wang Siyu is a victim that he found through the headline software. Before identifying the target, he must have viewed a lot of similar videos, but the account he used has no relevant records."
"That can only mean that he still has an account that belongs to him. That account is used normally, and the Summer Hail account is only used to contact the victim."
If the headline software was replaced with a mobile phone number, it would be easy to understand.
A mobile phone number was used under one's real name, and it was used normally to contact friends and relatives. Once this mobile phone number was exposed, his identity would also be exposed.
Therefore, the murderer would use other people's mobile phone numbers. This mobile phone number was only used to contact the victim, so even if the police found the mobile phone number, they would not be able to find the user.
What Han Bin wanted to investigate now was the murderer's real-name account.
"I understand what you mean." Ni Yuanfeng was an expert in big data, so he quickly understood what Han Bin meant.
"Can you do it?"
"I can try."
Han Bin said politely, "Mr. Ni, then I'll have to trouble you."
"It's my duty. It's every citizen's duty to assist the police in the investigation." Ni Yuanfeng responded and then went out to make arrangements.
A moment later, Ni Yuanfeng walked in with the technician named Xiao Ma. He had looked for Xiao Ma three times in a row, so he must be a technical expert.
Xiao Ma opened the laptop, fiddled with it, and pushed his glasses. "Police comrade, I'm ready. You can just tell me the information related to the target."
"The construction girl, Xiao Fang."
Xiao Ma, the technician, operated for a while. "More than 300,000 people have viewed her video."
"A girl who loves to work out."
"More than 500,000 people have viewed her video, and there are more than 100,000 overlapping fans. We still need more related conditions. "
"Let's generate electricity together. Lu Jingfang, murder, Mercedes-Benz, Zhou Jingjing, Tian Nan Court …" Han Bin listed out the keywords of some of the cases.
The more conditions there were, the fewer people who matched it.
Li Qin and Bao Xing watched from the side without interrupting. It was the first time they saw a suspect being targeted in this way.
After Xiao Ma was done, he said, "I've locked onto five people."
Han Bin continued, "This person's IP should be local."
Xiao Ma tapped on the keyboard. "There are two more people."
"Pull out their information." Han Bin walked in front of the screen and began to look at the information of the two accounts.
Account name: Wangjiang Wu
Gender: Male
Age: 26
Place of origin: Qindao
Cell phone number: 1368238 XXXX
Han Bin only glanced at it. "Pull out the information of the next account."
Account name: Sister Xiao Hua
Gender: Female
Age: 24
Place of origin: Qindao
Cell phone number: 158233 XXXX
Li Qin walked over and took a look. "Isn't this a female user?"
Han Bin turned to look at Ni Yuanfeng. "You can fill in the gender at will, right?"
Ni Yuanfeng answered, "Yes, as long as the cell phone number is bound, you can fill in anything else. We don't force our customers to use their real names."
"Sister Li, inform the technical department to check Sister Xiao Hua's cell phone number."
Li Qin asked, "What about the account name Wangjiang Wu?"
"That's not necessary."
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