In this way, imagine that we have an SMS from the Sender ID Twitter, containing a password reset code. An SMS message on Android can be defined as an alphanumeric “Sender ID” instead of a common number composed of digits. This flaw takes advantage of how Android treats the “Sender ID” of an SMS message. As observed above, malicious messages that are completely indistinguishable from genuine messages. With this technique in place, attackers can send malicious messages that impersonate any user. Right now, you can send me a message from Jack, which will appear in that conversation history, like this:”įigure 1: Message impersonation - Android I have a previous legit conversation with Jack. I have Jack Dorsey, Twitter CEO, saved to my phone’s contacts. Through this attack, the attackers successfully manipulated a small number of employees and used their credentials to access Twitter’s internal systems, including getting through our two-factor security mechanisms.Īs revealed in this article by James Fisher, an attacker can trick Android into displaying an SMS as coming from any contact on a victim’s phone. Criminals successfully got control of 45 of those accounts and used them to send tweets promoting a bitcoin scam. Twitter revealed that the technique used by crooks is called “phone spearphishing”: it allows attackers to target anyone with an account, including CEOs, celebrities and politicians. In this article, we analyze a new trick that can be used to display an SMS as coming from any contact on a victim’s phone for performing a successful spoofing attack.Īttacks based on social engineering techniques have been on the rise since a Bitcoin scam took over the social media platform Twitter in July 2020. Every day, organizations and people in general are targeted by crooks looking for sensitive data they can use to steal identities, sensitive information and commit fraud. Because many employees use mobile devices for work, the widespread use of mobile devices has come to put company networks at risk for cyberattacks.
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