<prompt> Human: I just checked my credit score, and for the first time there is an account on my report from American Express. It says the account was opened in 2005, when I was 15. I dont recall opening this account, and have never seen record of its existence until now.Whats stranger is that it has a limit of 23,500, while the limit of my highest legit account is only 4000. The account has 0 balance, 0 past due, current payment status, and 000 for times 306090 days late.Although I have no recollection or record of opening the account, it doesnt have any activity, so it doesnt seem to be fraudulent. Thus, it is not negatively affecting my credit score. In fact it seems to be helping, as it contributes to my number of open accounts in good standing.I dont have a way of seeing if it has been used without contacting American Express, but the payment history is flawless which leads me to believe it is not being used at all.Should I just keep this account open, keep an eye on it, and only dispute an error if it is ever used?  <response>: Parent, or other related adult.Think about aunts, uncles, and grandparents who are financially savvy. It was likely one of them. 