My grandfather calls my mother and says that he has just found out that his retirement has come in. He would like to put her and I on as his beneficieries, so will need our Social Security # and our birthdate. He has been retired for a long time, more than 20 yrs ago, has a shady side and has been sort of estranged from us due to my mother's idiot brother causing family trouble. So, we are really wary about giving him our Socials, we haven't spoken in about 2 years and all of a sudden, by phone we are suppose to hand this info out. It has us scratching our heads. I was hoping someone on here might be able to give me some info from their experience with this kind of stuff. A couple people I have spoken to are a bit doubtful that all is legitimate with this deal. So, to be a beneficiary, do you have to hand over your Social Security # and birthday info?, because we are incredibly leery to do so. Thanks for any input.