While phone scams have been around for years, they continue to be perpetrated because people fall for them. Odds are, if you cast a wide enough net, someone will be caught in it.
Just today, a colleague of mine notified me that while she was in a meeting, her cell phone rang and caller ID indicated the call was from the Social Security Administration (“SSA”). She answered, and was greeted by a recording informing her that her Social Security benefits were going to be seized and she should continue on the call in order to provide information to clear up the issue. Luckily, my colleague is quite savvy about fraud scams, and she hung up immediately. However, scams continue because many people are not so shrewd.