How to avoid attack using SIM card

What attack can use a SIM card or mobile number? For example, I am talking about attacks like SIM swapping, phishing or stealing two-factor authentication code (XNUMXFA). All of this is directly related to the phone. ㅏ SIM card i.e. mobile phone can be attacked if you don't take proper action. So we will give some tips to avoid it.

SIM cards subject to cyber crime

All users have a SIM card on their mobile. It helps you connect to the phone network, make calls, send SMS, and use the Internet. It's true that in the past few years, traditional text messaging has become almost unnoticed. However, we receive multiple messages that allow us to log into our account, for example.

This happens because it is a way to verify your identity. We can receive code by SMS that serves to authenticate us when using certain platforms or services. What happens when a hacker attacks a SIM and reads that message? This is a problem because you can access your account.

Therefore, it is important to be secure and avoid attacks that affect the SIM card. However, we are talking about not only theft of the code we receive via SMS, but also other threats such as: SIM swapping attack or beating .

Type of attack based on SIM card

One such attack is SIM swapping . At present it is not really widespread in Spain, but it is true that it is convenient to know how it works and to avoid problems. SIM swapping attacks are, for example, when hackers impersonate our identities to phone operators.

It may happen if you have obtained personal information. In this way, you can contact the operator and take action as if you were a legitimate user.

This problem is also called SIM jack. Attackers can get data from social networks, don't know information leaked online, or can be stolen using malware.

Another way to use your mobile phone SIM is Bai Xing . What does this technology consist of? In this case, it is very similar to phishing, except that it makes a voice call. They will call us to get personal data that can be used to perform SIM swapping attacks as we mentioned. As a legitimate company, it is usually established as an organization that requests information about specific information.

Also the most common attack recently is via 2FA key theft SMS. Using the malware installed on the device, we can capture all the messages we receive and send them to a server controlled by the attacker. In this way, if an intruder tries to enter a bank account, for example, and the SMS needs to enter the code it receives, the code can be used to steal the message.

How to avoid attack on SIM card

Now users can consider certain tips and methods to avoid attacks that endanger SIM card. The goal is to stay away from possible intruders and steal our data.

Common sense is basic. We found that there was an attack like Vishing trying to deceive the victim. They will pretend to be the company or platform we use. Therefore, we must take extreme care and make no mistakes that could compromise safety.

It is also important not to expose our data beyond what is needed on the Internet. In the case of SIM swapping attacks, it finds all kinds of information released by the network. For example, data published by social networks, information published by public forums or websites.

On the other hand, the fundamental thing is in security . Don't enter SMS if you are old enough to steal information. In this way we can avoid the misuse of 2FA. Must have security tools.

It is also very important to protect your device with a cord. There are ways to prevent someone with physical access from accessing your phone's content. In this way we can avoid intruders who read SMS if the phone is stolen or lost. At least it will give us time.