More reason for people to get some education...
While I agree that the lack of secular education is a problem in the NY frum community, I don't think that the propensity to fall for these scams is because of it.
People have little exposure to the secular world, and have ingrained in them trust of other frum ppl. Not a bad thing in itself, but scams like these appear clearly as scams only to someone who has been exposed to similar stuff before.
If someone never saw one of those 'you've won $1m!!!' Letters in the mail, I would excuse them for believing it was real at first.
Financial education might help, but I think the only thing that will really help is less isolation from the outside world.
Just my 2c.