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Hanoi police warn of new scam tricks

A new trick “blooms” in recent times, mainly in the form of 5G sim upgrade trick, helping to solve e-wallet problems…

The Hanoi police have just issued a warning about the tricks cheat appeared only recently.

According to Hanoi Police, scammers will pretend to be customer care staff of network operators, banks, e-wallet providers, etc. to assist in solving problems.

Then, the bad guy asks the client to text according to the syntax they give. In essence, this is a call redirection so that they try to take control of the customer’s phone sim, thereby appropriating money in the e-wallet and bank account associated with the sim owner’s wallet.

Objects usually require the client to text with the syntax **21*#. The syntax **21*# is actually the call forwarding syntax (Call Forward) – a service of the network operators that allows mobile subscribers to redirect calls to a phone number on the network or outside the network.

Hanoi police warn that new scam tricks are blooming

Then, the subjects will remotely login to the victim’s e-wallet application. The e-wallet switchboard will call to provide the OTP, however, this call is redirected to the subject’s phone number. From there, the bad guys appropriate money in the e-wallet, the bank account associated with the wallet.

Bad guys can also ask customers to send text messages according to the DS syntax to 901. This is the syntax to change the phone sim to a blank sim card by texting method (SMS). Objects often scam that help users upgrade their phone sim to 4G, 5G SIM to ask users to text according to the above syntax.

When the operation is successful, the user will lose control of the sim because the fraudster’s sim becomes the “original” sim and accesses the e-wallet application and online payment application to appropriate money.

Another method, objects, asks the victims to text according to the syntax provided by the object. However, this is actually a syntax for service users to allow mobile subscribers to redirect calls to any phone number.

After the victim successfully sends the text message written in the above syntax, he will lose control of the phone sim. All calls to the user’s subscriber are immediately forwarded to the scammer’s phone number.

At this time, the fraudster easily appropriates social network accounts, bank accounts, e-wallets, etc victim by logging in and selecting the “Forgot Password” feature. The service provider will send an authentication code (OTP) to the sim card of the phone that the object has just taken.

The scammer will appropriate the victim’s money in the bank account, e-wallet or use the victim’s information to borrow money through online lending apps, leading to the victim being in debt of a large amount of money.

According to Dan Tri

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