Italian security researchers have discovered a vulnerability that can be easily exploited to break into messaging applications such as Telegram, WhatsApp, and Signal.
According to InTheCyber security researchers, the rather old voicemail caller-ID spoofing flaw can be leveraged to steal activation codes sent by messaging apps and compromise accounts. The researchers say that networks of two of the biggest mobile operators in Italy allow this kind of attack, explaining that the attacker only needs to know the victim’s phone number to be successful.
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