what if you had reviews made by your friends and sources you trust accessible to you online that seems like a better model than see what everyone and their dog thinks about everything under the sun..
Just trying to point out situations where this can not be followed to the letter.
If someone is speeding away from a robbery the police should not be allowed to speed after them?
If someone is currently robbing a store should the police not be allowed to trespass to stop them?
I do agree that they should be held to a higher standard. I also think if malicious intent is evident in their actions they should be given harsher sentences because they are given so much public trust. But they must be allowed to break some laws or they wont be able to do their jobs at all.
Only thing I can think of would require uploading malicious software with a modified version of the square device but that doesn't look possible, yet.
Why not just use your phone to pay, for example the business owner gives you a qr code that you scan in then use an app that interfaces with your paypal account that pays the business they get confirmation you don't have to worry about using extra hardware,
or why can't the business owner give you a number to text and then collect payment through that then you don't even need a smartphone any cellphone will do.
Really things would be more secure if I could send money to an account rather than have them remove money from mine.
what if you were the owner of the iphone and square hardware and the business or person you were giving money to had a barcode/number/qr code that you would scan/enter which would go to a third party(probably square) service that verifies your account is in good standing and tells the receiver on their iphone/android then the transaction is completed square takes a small cut 1 cent per transaction for being the trusted middle man. No worry about using untrusted system or anything.