The significant increase in the number of WhatsApp users, surpassing the 3 billion mark globally, brought with it a worrying increase in account cloning attempts in 2025. Digital Criminosos have improved their tactics, using increasingly elaborate social engineering methods, which exploit victims’ trust and inattention to gain undue access to conversations, contacts and sensitive data.
Fraudulent strategies range from sending false messages and malicious QR codes to the dissemination of spyware applications. Once control of the account is gained, the consequences can be devastating, including extortion, identity theft and financial fraud carried out against the victim’s network. Meta, the company responsible for the application, has implemented new security tools, but the main line of defense continues to be the user’s own vigilance and proactivity.
Signs such as sudden application disconnections, messages appearing as read without the user opening them, and unexpected receipt of verification codes are critical alerts. Reconhecer these signs and acting quickly is essential to mitigate the damage and regain control of the account before the loss worsens.
Main attack vectors and how they work
The WhatsApp Web exploit remains one of the most common methods for account cloning. Golpistas trick the victim into scanning a QR code on a device they control, often under the pretext of offering a promotion or technical support. Once the code is read, the criminal gains mirrored access to all conversations in real time, being able to interact as if he were the account holder.
Another recurring tactic is sending unsolicited six-digit verification codes. The attacker tries to register the victim’s number on a new device and then contacts them via a call or message, posing as a family member or WhatsApp support employee, to request the code received via SMS. Sharing this code is what allows you to completely transfer control of the account.
Warning signs that cannot be ignored
Observing unusual activity in the application is the first step in identifying a possible intrusion. Mensagens sent or marked as read without your intervention is a strong indication that someone else has access to your account. Da Likewise, unexpected changes to your profile photo, name or status message should be treated with immediate suspicion.
It is crucial to periodically check the “Connected devices” section available in the app’s settings. Essa screen displays all active WhatsApp sessions Web or Desktop. Caso encounters any unknown access, it is possible to terminate it immediately with just one touch, disconnecting the attacker remotely.
Sudden and frequent disconnections from the app on your primary phone are also a serious warning sign. Como WhatsApp does not allow the same account to be used simultaneously on two smartphones, being logged out for no apparent reason usually means that someone managed to register your number on another device.
Receiving verification codes via SMS without requesting them indicates that an intrusion attempt is underway. Jamais share these codes with anyone, under no circumstances, as they are the access key to your account.
Essential tools to protect your account
The most effective security measure against cloning is activating “Two-Step Verification”. Esse feature adds an extra layer of protection by requiring a six-digit PIN, created by you, every time your phone number is registered on a new device. Mesmo Once a criminal obtains the verification code sent via SMS, he will not be able to access the account without this PIN.
To further strengthen privacy, Meta introduced “Advanced
Keeping your smartphone’s operating system and the WhatsApp application itself always updated is another essential practice. Updates often include fixes for security vulnerabilities that could be exploited by hackers. Além Additionally, using reliable antivirus software such as Kaspersky or Bitdefender helps detect and remove spyware that may be operating in the background.
The silent threat of spyware
An unexplained increase in mobile data consumption or a faster drain on your cell phone battery could be symptoms of the presence of spyware. Esses Malicious applications are designed to operate covertly, monitoring your activities, collecting personal information, and transmitting this data to a remote server. Essa constant activity consumes device resources, such as processing, battery and internet connection. In 2025, the spread of commercial spyware, often disguised as parental monitoring or security applications, has become a growing threat, being distributed through malicious links in emails, SMS or messages on WhatsApp itself. Para protect yourself, it is essential to avoid downloading applications from unofficial sources and be wary of links received from unknown contacts. Ferramentas security and antivirus software are capable of scanning your device for these threats and removing them before they cause further damage. Verificar the permissions granted to each installed application is also a good practice, revoking access that seems excessive or unnecessary for the app’s function.
Steps to recovery after a hack
If you suspect that your account has been cloned, your first action should be to notify your closest contacts by another means of communication, such as a call or SMS. Alerte them to ignore any suspicious messages coming from your WhatsApp number, especially requests for money or sharing personal information.
Then try to reinstall WhatsApp on your phone. When you do this, the system will ask for the verification code sent via SMS to your number. Esse process will automatically log out the attacker using your account on another device. If you have two-step verification enabled, the criminal has already been blocked previously.
Contacting official support
If you are unable to regain access on your own, contact official WhatsApp support via the company’s website, providing your phone number and a detailed description of what happened. The support team can take the necessary steps to deactivate the account and assist with the recovery process.
