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I wonder if it accepts counterfeit dollars. [edit:] to clarify, I don't mean this as a joke. It seems that they're not paying out cash (only taking in) because they don't trust the depositor and have to wait anywhere from 10 mins to a couple hours for a transaction. But how can they trust the incoming cash? It seems like a perfect venue for a counterfeiter.

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I would guess that they're using a standard bill acceptor that does optical and magnetic tests.

They'd have to be really good fake bills.

This! The exact same way a regular ATM ensures deposits are legitimate.

For some reason I always thought that was a manual affair. In Australia deposits are just money stuffed in an envelope with your intended value on it, that go into a slot in the ATM.

The US has fully automated machines. They even can read checks.

Checks? Seriously? They must have some badass OCR.

I actually recently went to an ATM to deposit money, which I haven't done in a long while, and was pretty confused not to find any envelopes available.

I was wondering that myself. I assume they have some anti-counterfeiting tech in there? Though that seems tough if the machine is built for so many different currencies.

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