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If hackers were able to take 1 cent from 100 million bank cards every month, could they go undetected?

Can't, because the bank anti-money laundering system, able to use big data, monitoring everyone's bank card account. As long as your bank card account, there is a large-scale suspicious in and out of the flow, the first time will be the background warning. What do you mean by suspicious incoming and outgoing flows? It is very simple, based on your salary income, your bank deposits, your historic amount of water flow, to determine whether it is normal.

For example, you used to have a year's worth of water on your bank card, and it was only a few tens of thousands of dollars. Suddenly one month, large transfers in and out, a month of water up to hundreds of thousands, millions.

Then this is obviously not normal, is likely to be involved in tax evasion, or money laundering. It is likely that the bank the first time, will be your bank card frozen. You need to take the evidence and prove your innocence before it can be unblocked. And like that, take a penny from every bank card, and then transfer it to your own bank card, a month running water hundreds of millions of strokes. Anyone who is not blind knows that this is definitely not normal.

Banks have a very good system now, and they manage their internal staff very strictly

We see stories on the news about people who deposit money in the bank, and how many years later, the money suddenly disappears. This is the kind of thing that basically happened at least ten years ago.

The system was not sound back then, and it was easy for some internal employees to exploit the loopholes, and the bank ended up taking the blame. Nowadays, the bank I work for is particularly strict with its internal staff. Twice a year, the review not only checks the politics, but also checks the personal economy. In addition to home loans, car loans, other than any other external debt are not allowed.

In particular, no more than two credit cards are allowed per person. Savings cards, no more than five per person. As long as you are at work that day, you are not allowed to do business for yourself. The lunch break, also not allowed. Employee personal accounts, daily deposits, withdrawals, or transfers, up to 30,000 yuan, will trigger a background warning, you must write a statement of circumstances.

What are you going to do with the money? You deposit money, where does the money come from? Who is the other side of the transfer? Why do you want to transfer money to the other party? Why should the other party transfer money to you? With such robust defenses, even if a person wants to do something illegal, they don't stand a chance.

Finally, it is recommended that you save money in the future, it is best to keep it in the state-owned banks. The bank is big, the system is perfect, everything is in accordance with the rules and regulations. Although the deposit interest is a little lower, but more secure.