I am a super cop

Chapter 801 Poverty can prevent theft

According to He Xingping's narration, Gu Chen basically knew why Wang Guifang's bank card cash was suddenly stolen without any operation.

It can be said that in this case, the sniffing equipment used by the criminal suspect He Xingping was very cheap.

As for the sniffing technology, it is not a high-tech technology, but why can it succeed repeatedly?

Gu Chen naturally had to reflect.

He Xingping, who was captured, also took the initiative to confess: "You often register your information with your real name on some apps for convenience."

"But when you forget your password, you can log in with the SMS verification code, and you will feel very convenient at this time."

"At the same time, it is also convenient for those of us to steal your personal information and log in through this verification code, which is convenient for you and me."

"That's right, convenient payment is indeed a double-edged sword." Gu Chen also admitted this.

What He Xingping said is exactly where the loopholes of mobile payment lie.

Moreover, Police Officer Wang also randomly selected a number of commonly used apps on the mobile phone for testing. These apps can generally be logged in by user name plus password, or mobile phone number plus dynamic verification code.

When the user forgets the password, the password can be retrieved by sending a verification code through the mobile phone number.

All this seems to be very convenient and safe for users.

However, the criminals just use the mobile phone number and the dynamic verification code to log in. They choose to enter the user's mobile phone number on their mobile phone or computer in the dead of night when people's awareness of prevention is relatively low.

Then use the intercepted dynamic verification code to log in to the user's APP to achieve the purpose of stealing the user's funds.

But the method of adding verification codes on mobile phones may be the most common method used by many APPs, especially in cyberspace.

And this is not to say one or two, but the pass verification method.

But this verification method itself has certain security risks.

In other words, first of all, the verification code may be intercepted, and this is one of them.

And the second one is the reserved mobile phone number. In fact, the possibility of this number being leaked is very high.

Therefore, adding these two methods together to make a unique verification method has certain loopholes.

Gu Chen is very clear that operators and banks should supplement it with other verification methods as much as possible.

Not only that, many Internet companies do not protect users' personal information very well.

And when you log in to many apps and use many mobile services, each mobile service requires individuals to provide some personal data.

Then when people enter so many and use so many purposes, almost all of your information is stored in various nodes of the Internet, and there are many backups.

However, if any of these backups are lost, leaked, etc., all personal data will be lost.

Because criminal suspects can deliberately interfere with mobile phone signals, this will cause 4G and 5G mobile phones to switch to 2G networks.

However, the inherent deficiencies of the 2G network are difficult to make up for at the moment.

This requires many Internet companies and banks not to use mobile phones plus dynamic verification codes as the only identity verification method.

It should be supplemented by adding other verification methods as much as possible.

At the same time, ordinary users should also strengthen personal protection.

Seeing that Gu Chen had been writing drafts in the notebook, Lu Weiwei couldn't help but crane her neck.

While Gu Chen was asking He Xingping, he had already started drafting a plan to prevent leakage.

Glancing at He Xingping, Gu Chen asked again: "By the way, your sniffing technology should be quite difficult to deal with."

"If it's you, from your own point of view, is there any suitable way to stop it? I want to hear your opinion."

Gu Chen really needed to listen to He Xingping's opinion.

From different perspectives, the party who commits the crime often has a more macroscopic view than the victim.

He Xingping nodded and said: "The best way is to say that if you want to bind a third-party platform bank card, try not to put too much money in it."

"That is to say, poverty can prevent theft?" Officer Wang suddenly felt deeply moved.

It feels like after so many years, I suddenly realized that being poor is not bad, at least not afraid of thieves thinking about it, it is true.

He Xingping was also stunned, then nodded and said: "Bad...that's what it means."

After Gu Chen had a clear understanding of the situation at the scene, he took out the handcuffs and directly handcuffed He Xingping: "Please follow us back to the Furong branch for investigation."

……

……

After bringing He Xingping back to the Furong Sub-bureau, he also brought back the equipment that He Xingping rented out for debugging.

Gu Chen gave these to He Junchao, and asked He Junchao to sort out the data.

At the same time, Wang Guifang, who had been waiting for a long time in the office of the third group of the Furong branch, also got the lost 5 yuan in cash as she wished, and her jaw almost dropped there.

She grabbed Gu Chen's hand and said, "Officer Gu, thank you so much, I didn't expect my stolen cash to be recovered so quickly, isn't your efficiency too high?"

"It's okay, as long as the cash can be recovered..."

Before Gu Chen finished speaking, Wang Guifang interrupted immediately: "I've heard it all. In my case, it really takes a long time to get it back. For example, a girlfriend of mine lost tens of thousands of dollars by telecom fraud last year." block, it has not been recovered yet.”

"Actually, I really don't care about the 5 yuan. I just think that there is so much cash in the card. If all of them are stolen one day, I will be in real trouble."

"I know." Gu Chen also stretched out his hand to interrupt Wang Guifang's speech, and continued to warn: "But I want to remind you here that your name, mobile phone number, dynamic SMS verification code, and ID information and bank card account number, It has been mastered by others, and it is recommended that you change this information immediately to avoid encountering the same situation again."

"You... what did you say? My name? And these mobile phone numbers, bank cards, etc. How can these things be known by other people?"

Gu Chen couldn't explain to her in detail for a while, so he restructured his language and said, "Let me tell you so simply, your mobile phone signal was interfered by someone, and it directly became a 2G signal."

"The criminal suspect used the loopholes in the 2G signal to capture your mobile phone number and dynamic verification code, and then used these to log in to all the social apps you registered, and used these login accounts to piece together to capture your other information."

"This includes your ID number, name, and bank card information."

"Through these data, criminal suspects can accurately grasp your income, so if you don't strengthen your prevention now, I am afraid that fraudulent transactions will happen again."

"Is... really so scary?"

Also listening to Gu Chen's explanation, Wang Guifang suddenly panicked.

You know, she is considered a rich woman anyway, and now her identity information is completely controlled by criminals.

In this way, wouldn't he become a cash machine for criminals?
Thinking of this, Wang Guifang almost burst into tears: "Officer Gu, then...then what should I do? What should I do?"

"Don't worry." Gu Chen had already expected Wang Guifang's reaction, so he suggested: "If you want to bind a third-party platform bank card, try not to put too much money in it."

"Because criminals take advantage of passwordless payment, that is, the loophole that you can pay with SMS verification codes, and swipe your money away."

"So, try not to put too much money in the bound third-party platform bank card."

"Okay, I'll listen to you." Wang Guifang nodded like a chicken pecking at rice, and asked in a panic, "Then besides this, is there anything else that needs attention?"

After thinking about it, Gu Chen said again: "If you suddenly receive an unknown verification code and find out that your bank card has been stolen, don't panic."

"The first thing you think of should be to go to the public security organ to call the police, and stop the payment in time, and report the loss of your bank card to freeze it."

"The next thing, we will leave it to our public security organs to help you recover the money, do you understand?"

"Ming... I understand, I understand." Of course Wang Guifang understands, if she doesn't understand, she may be about to change from a rich woman to a negative woman, of course she must understand.

The vice president of the bank, Zhang Peijun, was also shocked and said: "I didn't expect it, I really didn't expect it, these criminals are really getting more and more sophisticated in their modus operandi, it's hard to guard against."

Glancing at Wang Guifang, Zhang Peijun said again: "Sister Wang, I have already said that this matter must have nothing to do with our bank. There must be something wrong. You see, you left the responsibility to our bank from the very beginning. It is really difficult for us to let so many customers see it.”

Wang Guifang was also smiling at the moment, and quickly apologized to Zhang Peijun: "Brother Zhang, it is your sister Wang who was reckless and brought such a negative impact on your bank."

"But I was anxious at the time. After all, the bank card was stolen for no reason for 5 yuan. If it was really done by your bank, then I have to be on guard."

"After all these years, isn't it rare for your bank leaders to secretly transfer customers' funds to buy stocks and buy funds?"

When asked by Wang Guifang, Zhang Peijun was immediately speechless.

Indeed, what Wang Guifang said is also true. In recent years, various bank leaders have privately embezzled customers' book funds to do private work. It has happened frequently, and it has become a social hot spot for a while.

When Wang Guifang used this trick to speak, Zhang Peijun really had nothing to say, so he could only nod happily and said, "Sister Wang, you are right, but it is a minority after all."

"It's impossible for a rat droppings to ruin a pot of porridge, right? This will never happen in our bank. We completely abide by professional ethics. With me, Zhang Peijun, in the bank, you can save money and make loans. "

"Okay, I believe your brother." Wang Guifang didn't seem to be so angry anymore.

Before the two were still yelling about who was right in the bank lobby, now that Gu Chen recovered Wang Guifang's stolen funds, Wang Guifang was naturally happy.

Gu Chen also told her the remedial measures. The first problem Wang Guifang needs to solve now is to set the bound third-party payment bank card to a small amount, so Zhang Peijun must naturally operate it.

So Wang Guifang thanked Gu Chen and all three groups of police officers, and then left the Furong branch with Zhang Peijun.

Seeing this, He Junchao couldn't help but ask Gu Chen: "By the way, Team Leader Gu, what do you do with He Xingping you captured? Do you want to get rid of the guy he contacted through a single line?"

"Don't worry about these things for now." Gu Chen stopped him directly: "Although this case is not big, the problems it brings out deserve everyone's attention."

"Pull out the radish and bring out the pit. This industrial chain is not that simple. This He Xingping is just a small player. We still have to rely on him to dig out the entire industrial chain."

Officer Ding frowned, and asked Gu Chen, "Then what do you say?"

"I'm preparing a document. I want to sort out the information on this kind of problem directly and send it to Director Zhao's work email. I think Director Zhao should be interested in it."

"That's the best." Police Officer Ding also agreed with Gu Chen's statement, so he said: "Then it's hard work for Team Leader Gu, hurry up, and tell our brothers if you need help."

"I don't need it now, I guess it will be soon." Gu Chen sat back in his seat and began to prepare the materials for the report.

For the subsequent actions, the third criminal investigation team will definitely be indispensable, and the third criminal investigation team will be the absolute main force in handling the case.

At the same time, it also requires the full cooperation of other departments of the Furong Branch.

Knowing this well, Gu Chen needed a complete report to be given to Zhao Guozhi, in order to get a little bit of command from Zhao Guozhi, so that he could mobilize other departments to assist in handling the case.

In the office, everyone took Gu Chen's investigation transcripts and browsed repeatedly, and suddenly felt that the sniffing technology was a bit scary.

Police Officer Ding flipped through it, and then he said in astonishment: "Just a few cheap mobile phones, plus a dilapidated laptop, can you do whatever you want?"

"That's right." Yuan Shasha also thought carefully and fearfully said: "In other words, our personal information is like water in a pool. Every time we use an Internet service, it is like installing a pipe in the pool, which increases leakage. risks of."

"What is worrying is that many channels use the same faucet, that is, a mobile phone number plus a dynamic verification code." Lu Weiwei added to make everyone understand more clearly.

Officer Wang rested his chin, thoughtful: "The current environment is much better than ours, but there are more and more cybercrimes."

"And the reason why these lawbreakers were able to succeed is that they took advantage of various loopholes in network technology."

He Junchao curled his lips and said: "I hope these telecom operators, Internet companies, banks, and regulatory authorities can think of ways to effectively protect the property safety of the people."

"After all, without the convenience of security, it's meaningless."

"Isn't this something that banks and network operators should consider strengthening?" Another trainee police said.

Soon, the scene became extremely noisy.

A group of police officers with salaries of several thousand yuan began to worry about the property safety of these billionaires.

Lu Weiwei raised her hand and said, "There are also major apps. Since it is so natural to have permissions, then don't think about being a coward when your privacy is leaked."

"Agreed." Yuan Shasha also raised her hand in agreement: "Sometimes, they really make you feel the sense of desperation that they shirk their responsibilities."

"Then the operator should pay the compensation." He Junchao slapped the table, also filled with righteous indignation: "Who made their base stations so secret, not only compensation, but also huge fines, so as to save these people from pushing all kinds of Internet packages all day long. Just doing nothing.”

"Hehe, it's too scary. Ordinary people have no way to defend against this kind of thing. The text message comes out of nowhere, and the money is debited. How to prevent it? The operator can only strengthen the defense." A female trainee policeman also said: Can't help but say.

Soon, everyone's discussions became heated.

Many other police officers who passed by the three groups of offices would stop for a moment when they passed by, thinking that the three groups of offices were having a debate match.

Of course, Gu Chen is also very aware of the seriousness of this matter.

Because the sniffing technology, objectively speaking, is really the kind of defense that everyone said.

And from the investigation of He Xingping, it can be seen that he is only a small character.

It can be seen that this criminal gang seems to have appeared in the entire Jiangnan City.

It is obviously a tough battle to find this criminal gang and wipe out the core.

After Gu Chen analyzed the pros and cons in the report, he checked it again, and then sent it to Zhao Guozhi by email.

And Zhao Guozhi also has a tradition that has been preserved all the time, that is, he must read his work mailbox before going home before leaving work.

The work reports sent by all the police officers of the Furong branch should be completed on the same day.

For matters that need to be resolved urgently, Zhao Guozhi will immediately understand the situation.

As for the problems that were not difficult, Zhao Guozhi would wait until the next morning to solve them.

This is a bridge for Zhao Guozhi to communicate with many police officers of Furong Branch, and has always been welcomed by everyone.

After sending out his analysis report, Gu Chen stretched his waist and exercised his whole body.

Seeing that everyone was still discussing, Gu Chen picked up the water glass and went directly to the water dispenser to pour hot water.

Officer Ding also complained to Gu Chen: "I said Gu Chen, the leakage of personal privacy is really serious now."

"For example, every time I receive a variety of sales calls, I am very frightened. I want to ask where the privacy is leaked, and I don't know who to scold. It is estimated that the grandchildren of the bank leaked it, especially the confidential payment. Although Convenient, but full of loopholes."

"Senior Brother Ding." Seeing Police Officer Ding complaining about the bank seemed to be very enthusiastic, Gu Chen also said with a tinge of sarcasm:

"Objectively speaking, I remember that before the bank transfer, you must use the online banking shield, and the verification code alone is not enough. This is really good."

"But after mobile payment became popular, you can transfer money without online banking shield, as long as you have a verification code, it is more convenient and faster."

"I guess the banks were also under pressure from competition later on, which is why some mobile phone verification codes are now just bound, so this really can't be entirely blamed on the banks."

"That's right, I think Brother Gu's words are very objective." Yuan Shasha also agreed with Gu Chen's opinion very much, and continued:

"After all, society is progressing, banks are strengthening their secrecy, and scammers are also researching and cracking. This is the relationship between spear and shield, and mutual pressure can make progress."

"It's useless." He Junchao has always been a pessimist. He has been unhappy with the operator for many years, and directly complained:
"Now those operators don't talk about protection anymore, some of them even sell your information, and those people sell all kinds of sales calls."

……

(End of this chapter)