CreditBob wrote:I got a newletetr from MYFICO via an emai,stating that being an authorized suer added to soemoen else's account will not increase or imove your credit score. My question is if someone has done that will it lower the score or will the accoutn be deletd from the credit reprot? AND NO I AHVE NOT DOEN THIS!! But I wanted tuscani to elaborate on this. So if you are added as an authorized user, what will it do to your fico score?? Please let all og us know.