Just in case anyone thinks it can't happen to them, I saw a case in court a few weeks ago in which the fraudster had got his hands on £18,000 via a phishing scam, and transferred it to a reputable bureau de change where he arranged to take it out in Euros. He got through all stages of security, but was foiled by a sharp-eyed counter clerk, who called the police when he turned up to collect the cash.