The use of phone calls in digital scams is increasing day by day. Only an informed investor can keep himself safe from this.
I hope this is not true because this is definitely problematic. It could create a huge blow for bitcoin if this is proven real. On the other hand just in case that if it's really real then we must do something to stop it. We can't afford this kind of limitationin this system. We all want bitcoin to be clean and keep its integrity.