The whole point of publicizing gambits is to make them less effective. (Sounds like you could write a book and make a killing on this topic.) Edit: An obvious

The whole point of publicizing gambits is to make them less effective. (Sounds like you could write a book and make a killing on this topic.) Edit: An obvious hack in the US would be to spoof a bank's caller id and start calling as the "fraud department" ... Leaving the rest to the imagination.