Credit hacks dissected: Do these really work?

My buddy Alan sent me an email with some interesting credit card hacks:

“1) If you have a short credit history (like me), get your parents/grandparents to add you as a authorized user on their oldest credit card (you inherit their credit history length)
2) If you have any blemishes in the past (like a single missed payment when you first got your credit card in high school) dispute it right before making a car/house transaction because while that blemish is investigated, it is not counted against you for 30 days (while they investigate it); if the investigation does not get back to you within 30 days, the blemish is gone permanently”

I wanted to check for sure, so I asked another friend, Andy Jolls, who is a former MyFico exec. His reply:

“These are things we called score gaming at myFICO.

FICO ’08 closed the loophole around authorized users to an extent. People were using his method number one to add users to anyone with a strong credit history to get the score boost. FICO ’08 now checks the likelihood it’s an honest auth. user [parent/grand parent, etc. ] and will let the scores intertwine. Yes, it can happen pretty quickly.

Number 2 is not true, company has to remove it in 30 days if it can’t verify it, but it does count against you while they investigate. Said another way, you send in your dispute on August 1, the company doesn’t need to update your score immediately when they get the dispute. They have 30 days to investigate and respond.

Also, it’s not gone permanently. this is what credit repair shops tout but that’s not right. Scenario: Aug 1, you mail the dispute, Sept 1, they remove the item because they haven’t heard back. Sept 16th, they get verification of the account, so they add it back in. Make sense? Sometimes, it is removed permanently because they never hear back.”

Learn more: Read more about the hidden perks of credit cards.

What credit card hacks do you know about?

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