In Japan, so-called “Ore-ore sagi -おれおれ詐欺"(It’s me swindle) is rampant. “It’s me swindle” is a fraudulent technique to swindle money from aged people, in most cases loving mothers, by calling them in disguise of their son. They say “Mom, it’s me,” on phone. “I lost a big money today. If I don’t pay it back, I’ll be in jail. Please transfer X amount of money to my bank account xxxx,” and urge the target parent to pay the quoted sum immediately into a suggested bank account.
The total amount of damage by “It’s me swindle" jumped up to ￥48.7 billion (USD 487 million) in 2013 from ￥364 billion (USD 364 million) in 2012 in Japan. The National Police Agency officially named “It’s me swindle” as “Special Fraud” last year, which I think very vague naming.
I heard “It’s me swindles” are observed in U.S. too, and that it’s called “I’m Mike” fraud. Is it true? What do you call this crime in spoken English and in legal term?