Its function, which activates when it detects activity that can harm its users' safety, shows the Cash App as a very secure application. In most cases, users are not even aware that they are participating in scam activities. Users who use more than one device are most likely to experience this problem. Please contact Cash App support if you still receive the "cash app failed for my protection" message after you have performed all the above steps. It is necessary for you to give the Cash App support department your name, Social Security number, and other identifying information if you haven't verified your account.