While using your Cash App account, you may come across some errors and security problems. However, you also need to clarify Can Someone Hack Your Cash App With Your Username or you have to get it sorted out by taking help from the Cash App support executives. If someone is using your Email account that is already linked to your Cash App account, your Cash App account is already at high risk. https://www.digitalworldsupport.com/can-someone-hack-your-cash-app-with-just-your-username/