Square Cash

square.com

36 points·zhs··9 comments

Posted 17 hours ago, 72 comments at this time: https://news.ycombinator.com/item?id=5738828

This must be the easiest cash system to hack ever made. I'm guessing Square's security will be on the other side - fixing up invalid transactions easily after they happen?

They really need to add some kind of guarantees/insurance onto a system like this...

I'm confused about that too. I don't know how much header validation and such you can do if you're BCCed, but it seems like a difficult one to secure.

it's probably not sending out from your e-mail client. All you see in the promo are input fields. Those could very easily be in an app / site which has authenticated you, and the e-mail itself is probably just the notification of the transaction, not the transaction itself. Just like paypal allows you to send money to an e-mail address. the person has to set up an authenticated account to actually receive the things. I wouldn't be surprised if it wasn't that you had a square account which was hooked to a debit card and they just "refunded" you money to add money to it.

Fair point, and you're probably right, but that is a bizarre interface if that's the case. Email isn't a particularly great UI, it's just familiar, it doesn't make sense to replicate it just to look like it. It is a great piece of new functionality for Square though.

Hopefully there wont be the same issues as with posterous:

https://news.ycombinator.com/item?id=1441997

What will be the difference compared to sending money with Gmail? http://www.google.com/wallet/send-money/

wot blocked the site for me and I see why on http://www.mywot.com/en/scorecard/square.com (spam?)

Man screw all these people for making cool-looking websites

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