1. Once you create one Cash App account, its details are saved in the database of Square Inc., the parent company
2. All of the data is encrypted
3. It’s impossible to access the account without a PIN/Passcode sent to your e-mail address or phone number every time you attempt to log in
4. Cash App does not have an official phone number or real customer service you can talk to by voice. They do have a text-based customer service, and an official free toll phone number, but the response is automated.