An eSIM hijacking attack is a cybersecurity threat targeting devices equipped with an embedded SIM (eSIM). Unlike traditional SIM cards that can be physically swapped, an eSIM is built into the device and can be reprogrammed to change mobile network subscriptions. This type of attack involves unauthorized access and manipulation of an individual’s eSIM profile, allowing attackers to seize control of the victim’s mobile service without needing physical access to their device.
The attack typically exploits vulnerabilities in the eSIM’s management system or leverages social engineering tactics to deceive victims into divulging sensitive information, such as confirmation codes or login credentials. This could involve phishing attacks, exploiting weak security practices in the eSIM provisioning process, or manipulating customer service representatives to transfer a victim’s mobile service to a device controlled by the attacker.
Once the attacker has access to the eSIM, they can intercept phone calls, text messages, and potentially access sensitive data transmitted over the mobile network. This includes two-factor authentication codes sent via SMS, thereby compromising the security of online accounts ranging from email to banking services.
eSIM hijacking attacks pose significant security risks, including identity theft, financial fraud, and unauthorized access to sensitive data. As eSIM technology becomes more prevalent in mobile devices, protecting against such attacks becomes increasingly important for both individuals and organizations. This may involve implementing strong authentication mechanisms, regularly updating device firmware and software, and staying vigilant against social engineering tactics used by attackers.