Alert: Attacker can use a WhatsApp subscriber’s phone number to suspend his service

Today’s internet security is much safe as we expect. According to the latest information, a major security exploit can be used to suspend your WhatsApp account by a bad actor without your permission. The only information that the attacker needs is your phone number. According to Forbes, the attacker’s first step is to install WhatsApp on a new phone using your phone number to activate the service.

As the report indicates that, using two-factor authorization (2FA), tries to verify that it is you who just set up the new WhatsApp service on your phone. Since it isn’t you, this procedure will fail over and over again and if done multiple times, it results in your account log-in being suspended for 12 hours. For the next step, the attacker sends an email to WhatsApp stating that his phone (which is really your handset) has been stolen or lost and asks that the WhatsApp account associated with the number be shut down.

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WhatsApp sends an email confirming that the account has been suspended without asking the attacker for any kind of information that might prove that the request to suspend the account came from the legitimate owner of said account.

ESET’s Jake Moore says, “This is yet another worrying hack, one that could impact millions of users who could potentially be targeted with this attack. With so many people relying on WhatsApp as their primary communication tool for social and work purposes, it is alarming at what ease this can occur.”

(Via)

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