SIM swapping, also known as SIM hijacking, is a technique used by attackers to gain control of your mobile number by deceiving your cellphone provider into transferring your number to their device. With your phone number in their hands, attackers can bypass security measures to access your emails, bank accounts, social media profiles, and more. This method exploits the use of text messages for account recovery, alongside information obtained from phishing, two-factor authentication intercepts, or leaked data.