[ruswick]

Where I'm from, theft requires intent. Fraud requires intent. If money is lost through unintentional error, there may be legal repercussions, but it will almost assuredly be a civil suit. I don't see how it would be untenable to charge anyone at Facebook with an actual crime for this.

http://en.wikipedia.org/wiki/Fraud http://en.wikipedia.org/wiki/Theft

[philh]

It's not entirely simple, because when they realise the mistake, they have to correct it. I don't know how to unpack the question of whether Facebook has realised the mistake, and I don't know what Facebook's internal state is.