The spread of cloning scams on WhatsApp has generated growing alarm among digital security experts in 2025. Fraud is not limited to a specific region, but has a high incidence in Brasil, where the platform is an indispensable communication tool for both personal and professional purposes.
The consequences of a compromised account are serious, ranging from sending fraudulent messages in the victim’s name to requesting financial transfers to close contacts. Diante In this scenario, the user’s responsibility to adopt a proactive surveillance posture has become fundamental. Meta, WhatsApp’s parent company, has implemented new layers of security, but the effectiveness of these tools directly depends on the attention and quick action of account owners.
The sophistication of the attacks reflects a global trend of increasing cybercrime. Scammers’ strategies range from sending fake verification codes to exploiting vulnerabilities in synchronization with WhatsApp
Warning signs that indicate a compromised account
Identifying the first signs of an invasion is the most important step in containing the damage. One of the most obvious signs is the appearance of messages that were read or sent without your knowledge. Invasores use access to communicate with the victim’s contact list, generally with the aim of carrying out scams. It’s crucial to constantly monitor conversations and check for any activity that wasn’t carried out by you.
Another indicator of compromise is unexpected changes to the profile, such as changing the photo or status message. Embora may seem like harmless actions, they confirm that a third party has control over the account. Paralelamente, sudden and frequent disconnections from the app on your primary phone could mean that someone is trying to register your number on another device, forcing you out of the active session.
Most common hacking methods used by criminals
Exploiting WhatsApp Web continues to be one of the main entry points for scammers. The technique consists of convincing the user to scan a QR code on a device controlled by the criminal, often under false pretexts, such as participating in a promotion or confirming a registration. Once the code is read, the attacker gains mirrored access to all real-time conversations.
Another recurring tactic is manipulation to obtain the six-digit verification code sent via SMS. Fraudsters contact the victim, posing as company representatives or even WhatsApp support, and request the code under some urgent claim. Providing this number is what allows the criminal to register the account on a new device, taking full control.
Social engineering is the cornerstone of these attacks. Criminals create convincing narratives, exploiting the victim’s trust or sense of urgency. Eles can pretend to be a friend asking for financial help or a company offering an unmissable advantage. Distrust of unexpected approaches is an essential protective barrier.
Essential tools to protect your account
The main security measure recommended by WhatsApp itself is the activation of two-step verification. Esse feature adds an extra layer of protection by requiring a user-created six-digit PIN every time the phone number is registered on a new device. Mesmo If a criminal obtains the verification code via SMS, he will not be able to access the account without this additional password.
Meta also introduced the “Advanced Chat Privacy” feature in 2025, designed to protect sensitive conversations. Essa functionality prevents screen capture and export of messages in specific chats, increasing the confidentiality of important information exchanged in work or family groups. It is a powerful tool against data leakage after a hack.
Keeping the smartphone’s operating system and the WhatsApp application itself always updated is another fundamental practice. Updates often include fixes for security flaws that could be exploited by hackers. Apple and Google release security patches regularly to protect users against new threats.
In addition to native tools, using reliable antivirus software, such as those offered by Kaspersky or Bitdefender, helps detect and remove spyware or other malware that may be operating on the device. Esses Malicious programs can steal information in the background, including access credentials and personal data, serving as a gateway to cloning.
The role of verification codes in the cloning scheme
The six-digit verification code sent via SMS is the master key to your WhatsApp account and is therefore a prime target for criminals. It is essential to understand that this code is personal, non-transferable and works as a temporary password to confirm possession of the phone number during installation or reinstallation of the application. WhatsApp and Meta will never request this information via message, email or call. Qualquer contact that asks for this code is, invariably, an attempted scam. Fraudsters have improved their approaches in 2025, using personalized messages and even automated voice calls to make the order more believable. The golden rule is simple and absolute: never share the verification code with anyone, under any circumstances. Simply handing over these six numbers is enough for the attacker to hijack the account and block access to the true owner.
What to do after cloning confirmation
If you suspect or confirm that your account has been cloned, acting quickly is crucial to regaining control. The first step is to try to reinstall WhatsApp on your own cell phone. When you do this, the system will ask for the verification code that will be sent to your phone number via SMS. Inserir this code on your device will automatically disable the active session on the attacker’s device.
Simultaneously, go to the “Connected Devices” section in the app’s settings and end any sessions that you don’t recognize, especially the WhatsApp Web or Desktop ones. Além Additionally, immediately change passwords for associated backup services such as Google Drive and iCloud to prevent the criminal from restoring your chat history.
The importance of alerting your network of contacts
After the invasion, it is common for criminals to use the cloned account to scam your contacts, sending messages asking for money or malicious links. Therefore, it is extremely important to alert friends, family and co-workers about what has happened as quickly as possible. Utilize alternative communication channels, such as calls, SMS or other social networks.
Craft a clear message explaining that your WhatsApp account has been compromised and that any requests made in your name should be ignored. Essa preventive action not only protects your network of contacts from possible financial losses, but also helps contain the spread of the scam and preserve your reputation.
Risks associated with abnormal battery and data consumption
A sudden and unexplained increase in mobile data consumption or cell phone battery discharge may be a symptom of the presence of spyware. Esses malicious applications operate discreetly in the background, collecting information and sending it to remote servers, which requires intensive use of the device’s resources. Monitorar Device performance in system settings can help identify suspicious apps that are consuming more resources than usual.