Hacking of WhatsApp accounts has become more common, and attackers typically use a variety of methods. Here are the most common techniques they employ:
1. Social Engineering/Phishing
Attackers trick users into sharing the 6-digit verification code sent to their phone during the WhatsApp setup process.
Example: A hacker may contact the victim, pretending to be a friend, or another trustworthy entity, and ask for the code sent via SMS.
2. SIM Swapping
Hackers convince the victim’s mobile service provider to transfer their phone number to a new SIM card. They can do this by: Gathering some personal details about you, answering security questions correctly, impersonating you, and convincing your mobile carrier to reassign your phone number. Once they have control of the number, they can receive the WhatsApp verification code and log in to the victim’s account.
Red flags: Sudden loss of network signal on the victim’s phone.
3. Malware or Spyware
Attackers may send malicious links or apps that the victim unknowingly installs. These can capture sensitive data, including messages or verification codes.
Example: Clicking on a fake promotional link or downloading unofficial apps outside of the Google Play Store or Apple App Store.
4. QR Code Scanning
WhatsApp Web allows users to log in by scanning a QR code. Hackers may trick victims into scanning a QR code that grants the hacker access to the victim’s account.
Example: An attacker may send a fake message, asking the user to scan a QR code to verify their account.
5. Fake Apps or Modded Versions of WhatsApp
Some users download modded versions of WhatsApp (like GBWhatsApp) for extra features. These unofficial versions may contain malware or expose user data to hackers.
6. Compromising Linked Devices
If a hacker gains physical access to your phone, they can link their device to your WhatsApp account using the “Linked Devices” feature, granting them access to messages.
How to Protect Yourself:
1. Enable Two-Step Verification: Activate it in WhatsApp settings for an added layer of security.
2. Be Wary of Requests: Never share your verification code, even with people who claim to be from WhatsApp or your friends.
3. Secure Your SIM: Use strong PINs and ensure your mobile account is protected with a password.
4. Avoid Suspicious Links: Do not click on links from unknown sources.
5. Download Only from Official Stores: Use only the official WhatsApp app from the Google Play Store or Apple App Store.
6. Monitor Linked Devices: Regularly check and log out of unknown devices under “Linked Devices” in WhatsApp settings.
7. Use Secure Lock Screens: Protect your phone with a password, PIN, or biometric lock.
If you suspect your account has been compromised, immediately log in to your account on another device. WhatsApp will log out the hacker. Additionally, notify WhatsApp support to help recover your account.
Ousman Faal [Digital Vigilante] is a Tech Entrepreneur & Digital Skills Trainer who teaches both in the classroom and online. He has experience in various technologies and likes sharing it with others. Ousman has published 150 articles on this blog. He is the CEO of Faalen Technologies and Skills.gm.
